The device for feeding an electric load

 

(57) Abstract:

For power ohmic, inductive or capacitive load work with sequences of pointed impulses, and peaked pulses have a duration less than 1 MS. The technical result is a significant increase in efficiency without damaging the load and without reducing its service life. Peaked pulses have a constant amplitude and the same polarity. The ratio of the pulse voltage and the nominal voltage is constantly more than 1.7. 2 C. and 20 C.p. f-crystals, 9 Il.

The invention concerns a device for power supply having a predetermined rated voltage of the electrical load having an input for connection to the power supply voltage and output load.

In the simplest case, such a device consists of a mechanical switch to close the electrical circuit that connects the power supply voltage, for example a battery or an electrical network, with the load. In the case of load, it usually is the incandescent lamp. In an electrical circuit may have a fuse overload.

Blavod is to the brightness of the incandescent lamp in the range from 0 to 100%. This is done, for example, by using a potentiometer. Currently widespread the so-called system management circumcision phases using thyristors or triacs, which any half-wave AC voltage to the detainee or select the point in time connected to a load.

The electric power load with direct current and the electric power of the load alternating current have respective advantages and disadvantages. Especially in the case of incandescent lamps and other lighting fixtures tried by increasing efficiency to achieve high luminous efficiency (for a given electrical power).

To power electrical loads, in particular, it is also known the use of stepper motors or similar elements when the load is applied pulse voltage, and squareknot sequence of pulses, i.e., the ratio of pulse duration to medimpulse interval, determines supplied to the load power in the range from 0 to 100%. In the extreme case of such a pulsed power supply to the loads is pure DC. In this case, the pulse duration of the first interval, equal to infinity. The amplitude of the voltage pulses, respectively, must comply with the rated voltage of the load.

The present invention is designed so that when the power to an electric load to achieve higher compared with the level of technical efficiency, in particular, with ohmic loads, e.g. incandescent lamps, and with a purely or predominantly inductive or capacitive loads, which have poor efficiency.

In accordance with the invention this is achieved by using a shaper peaked pulses, which supplies connected to the load output sequence of pointed impulses.

In the ideal case with these peaked pulses talking about the Dirac pulse, i.e., about the pulses with extremely high amplitude and extremely small but steady pulse duration.

Amplitude is supplied to the load peaked pulses is limited to instantly using available electronic circuit means for generating pulses. Using the currently available electronic smite with very high voltages, which one or two orders of magnitude higher than the rated voltage of the load.

In the case of a DC circuit it is necessary to ensure that supplied to the load supply voltage in any case, was not significantly higher than the nominal voltage. Of course, we know that there is a nearly proportional relationship between the ratio of the supply voltage and the nominal voltage, on the one hand, and efficiency of the consumer (= the brightness of the incandescent lamp and the life of the consumer, on the other hand. If, for example, an incandescent lamp with a rated voltage of 100 volts is fed only by the voltage of 90 or even 80 volts, it deteriorates the efficiency, i.e., significantly reduced luminous efficiency. However, with decreasing efficiency increases service life. If. on the contrary, the supply voltage increase up to 110 or even 120 volts, the efficiency, i.e., in this example, the luminous efficiency improves, however, decreases the lifetime. If the supply voltage is significantly higher than the nominal voltage, for example, by a factor of 1.5, in the short time load razrushaetsya harmful effects, rather, life is still increasing. Due to the fact that supplied to the load peaked pulses are of extremely short duration, the load is not destroyed even when the voltage pulse is many times higher than the nominal voltage of the load.

Duty cycle peaked pulses in the device in accordance with the invention amounts to a maximum of 0.3, this corresponds to the ratio of pulse duration to medimpulse interval, for example, 3 to 10.

It turned out that when the power to the incandescent lamp can be achieved, for example, the same luminous efficiency, if instead of the usual alternating voltage in accordance with the invention peaked pulses are many times larger than a rated voltage of bulb amplitude and consumed electric power is only a small part raskhodovavshiisya before power.

If we consider the spectrum of the Dirac impulse, then found a large number of harmonic components. All components are consumed in the electrical load. Especially when the loads that contain inductive components or are purely inductive, antiparallel nagruzke.

In accordance with the invention peaked pulses have a constant duration, but at the same time are extremely narrow with a relatively large amplitude voltage. In any case we are talking about the pulses of direct current. i.e. about the impulses of the same polarity.

In this case, the control load control is made simple through the expansion medimpulse intervals. When the maximum possible power to the load duty cycle (pulse width/ pulse period interval) is set to the maximum possible value, which in this case is 0.3. The corresponding ratio of the amplitude of the supply voltage to the nominal voltage is in this case approximately 1.7 (square root of 3). When the relationship of voltage (amplitude pulses/rated load voltage) lower values are not achieved good results, even if achieved the best use of energy in comparison with the prior art. The greater the ratio of the amplitude of the pulses to the nominal voltage of the load, the better the results achieved. Preference should be given to relationship stress more than 3, especially predpochtitelnei, divided by the square root of the normalized pulses marempolskoho interval (UZnennUB/separator R s o (tp/t1).

In order to achieve high speed switching in short pulses, it is necessary to work with electronic switches, Therefore, in accordance with the invention between the input and output device is equipped with a digital high-speed switch. Are taken into account, for example, field-effect transistors (FET'5) or bipolar transistors. When using a field-effect transistor as a high-speed switch control is performed by voltage. If you use a bipolar transistor, the control is performed in accordance with the current, to account for the high impedance input impedance field-effect transistor or low impedance input impedance of a bipolar transistor and to achieve high speeds enable.

Use peaked pulses with high amplitude requires the application of measures to avoid the disturbing influence of the environment, and in particular the power supply voltage. In accordance with the invention the input device is mounted on the inductive-capacitive filter. This filter bottom no feedback effect on the voltage source.

Reverse flow of energy from the load toward the source of supply voltage is prevented by using the included before the release of the locking device diode reverse current.

Amplitude is supplied to the load peaked voltage pulses associated with a fill factor of ( duty cycle) of a sequence of pointed pulses. In accordance with the invention, the nominal voltage is related mathematically to the amplitude peaked voltage pulses using the square root of the fill factor. When the fill factor (t1: tp) 1 : 10 and a predetermined nominal voltage amplitude peaked pulses should not be more than three times the nominal voltage. At a given amplitude of the pulse voltage (battery voltage) rated voltage, therefore, should be less than the maximum by a factor in accordance with the square root of the fill factor than the battery voltage. This assumption was made on the condition that although the load takes a much higher power than the nominal power, however, should be taken the same energy as usual.

In SP the AET, in the case load we are talking about electronic siren.

Electronic siren known. Management elektroakustische transducer (loudspeaker) is carried out using a modulating stage through the final stage of the amplifier. The principle of this known electronic siren in principle similar. If you want to achieve commonly desired volume (e.g., 115 dB at the distance of 32 m), in the Converter, it is necessary to apply a great deal of power. It is necessary to match the characteristic impedance at the output terminal of the amplifier stage with a full load resistance. This causes a significant loss.

Electronic siren in accordance with the invention has a generator peaked pulses, which through an electronic switch terminal cascade connects the electro-acoustic transducer with a voltage source, in particular, with battery.

Below using the drawings more in detail explained with examples. The drawings show:

Fig. 1 is a schematic diagram of the device for powering an electric load;

Fig. 2 is a pulse diagram for real-peaked pulse, which is the analogue of the
Fig. 4 is a schematic diagram shown in Fig. 1 only schematically devices to power electrical loads;

Fig. 5 is a detailed circuit of the generator for real-peaked pulses (NIG);

Fig. 6 is a layout diagram for the power of the incandescent lamp from a source of AC voltage using a rectifier (usually) or generator peaked pulses in accordance with the invention);

Fig. 7 is a comparative picture of the waveform and the spectrogram of the ideal harmonic oscillations and four different impulse, which is presented in two topmost rows of the pulses (Fig. 7(A) and 7(B)) correspond to the preferred peaked pulses (Ni), and pulses in accordance with Fig. 7(C) and 7(D) can also be used as a pointed pulses;

Fig. 8 is a schematic depiction of a typical energy flows from the energy source through the load, which, in principle, show the different coefficient of each of the three loads;

Fig. 9 is a block diagram for power electronic siren.

In accordance with Fig. 1 with the battery voltage UB of the voltage source 2 via the switching device 6 connected to the load L, which is e or on conventional rectifier device, which of the alternating voltage network, for example, 220 V with transformer, rectifier and smoothing capacitor supplies a constant voltage.

In the case of the load L in this case is specifically about ohmic load, in particular about the electric light bulb. Described here are examples suitable also for inductive or capacitive loads or complex loads (loads with mixed ohmic, inductive and capacitive elements). However, a special application of the invention finds with ohmic, inductive and capacitive loads with low efficiency, such as incandescent lamps, electro-acoustic and piezoacoustic converters and the like.

As an example, for use as a load electroacoustic transducer below describes the electronic siren. It is a good example for the wonderful energy use.

As indicated in Fig. 1, in accordance with the invention, the battery voltage UB is many times larger than the nominal voltage UZnennload L.

In the switching device 6 of the battery voltage UB via describing the x the Dirac pulse), and the amplitude of the individual voltage pulses corresponds to the battery voltage UB and the fill factor (pulse width/pulse period interval) can be adjusted, and it does not exceed 0.3.

As shown in Fig. 3, peaked pulses have a maximum amplitude in accordance with the battery voltage UB, which is about a factor 4 larger than the nominal load voltage UZnenn. In the present example, the pulse duration of tIrefers to medimpulse interval tpabout 1 : 16. "The duration of the individual pulses is T, except for the first period, T0for which fair inequality T0> T. This is due to the circuitry.

Fig. 2 shows an enlarged image of the individual stable peaked pulse. This sharp pulse is an approximation to the (ideal) is the Dirac impulse. Direct total pulse duration is tI. This pulse duration of tIincludes the rise time tIless than 100 nanoseconds, the time" tDabout 100 (maximum 200 nanoseconds and the decay time tTless than 500 nanoseconds. The voltage of the battery is about the individual. On the left represents the input of switching device, which receives the battery voltage UB, to the right in Fig. 4 shows the output that is connected to the load L, which has a nominal voltage UZnenn. At the entrance is inductive-capacitive filter consisting of coils 62 and capacitor 64.

E, in this case made in the form of a self-field-effect transistor, the switch 66 on the gate input C starts peaked pulse generator NIG 68 with the signal voltage. Through the input switch 66 sends a signal generator NIG 68 on position "on" or "off". Antiparallel to the load on the output is diode D2. Between the output and the electronic switch 66 is blocking diode D1 reverse current.

To the generator NIG 68 in series with the main switch HS is connected to the potentiometer 70, with which you can set the duration marempolskoho interval from minimum to infinite values. Infinite interval is set with the opening operation of the main switch HS is turned off generator NIG 68. Other, in this case with the purpose of simplification, regulatory elements allow regulars and separately, marempolskoho interval.

Working current generator NIG 68 flows through the connection between the supply input S of the field effect transistor FET switch 66 and generator NIG 68 and the connection between the generator NIG 68 and lower total team bus device in accordance with Fig. 4.

Fig. 5 shows, in particular, to be undertaken in the form of a one-piece module of small size (10 x 20 x 30 mm) generator NIG 68. It is designed for the voltage of the battery UB from 5 to 100 C. there are several large modules for the voltage of the battery UB from 10 to 1000 and up to 20 watts using conventional at the present time structural elements. The development of electronic structural elements in the future will allow you to work with the amplitudes of the voltages of peaked pulses in the range of many tens of thousands of volts.

The maximum pre-set fill factor is 1 : 9. Using not presented here in more detail airtight conclusions in the case provided a stable operating temperature range from minus 20 to plus 60oC.

Between the two inputs H' and L' is the scheme of the resistance R2 and the two diodes 10 and 20. When a voltage is due to increased sweat is depending on the choice of parameters connected to the emitter of the transistor T1 resistance R1 delivers the resistance R2 and the diode 20 DC which charges are presented on the top left in Fig. 5 the capacitor C.

At the same time (Fig. 5) the current flows through the resistance R13 and R14 voltage divider, so that between these resistances is set to the reference voltage Ur. If the capacitor C is fully charged, the capacitor voltage Ucapproximately 1,05 more of the reference voltage Ur. This allows unijunction transistor UIT, which is formed from two separate transistors T3 and T5 and the base of transistor T3 is connected to the collector of transistor T5 and the base of the transistor T5 is with the collector of transistor T3. Until the potential on the emitter E2 of transistor T3 is higher than the reference voltage Ur, unijunction transistor UIT locks the current through resistance R9 and R10. As soon as the capacitor voltage will have a magnitude that is approximately 5% larger than the reference voltage Urbegins to grow front gabled pulse (tLin Fig. 2). In the firing of unijunction transistor UIT current flows through resistance R9 and R10 and the transistor T4 as a result of rapid reduction potential of the base compared to the emitter instantly opens. Through diodes 40 and 50 is issued sharp pulse of NI (which anychange potential on the base of the transistor T2 opens it, therefore, the transistor T1 instantly locked. Thereby interrupts the charging of the capacitor C. accumulated in the capacitor C power is supplied through the transistor T4 and diodes 40 and 50 on outputs 1' and 2'. The period of time tDin Fig. 2 in the diagram in accordance with Fig. 5 is determined by the area of the discharge capacitor, which is formed unipolar transistor UIT, resistance R10 and a parallel circuit of the resistance R9 and land base-emitter voltage of the transistor T4, including the resistance R6.

The time of firing of unijunction transistor UIT is maintained so long as almost completely will not be discharged capacitor C. Just prior to ignition of the first peaked pulse NI the capacitor C is completely discharged, so the first period of time T0is relatively long. Locking unijunction transistor UIT occurs in the time interval tTin Fig. 2.

In Fig. 6 shows the schematic layout, which, on the one hand, shows a conventional device for supplying power to the incandescent lamp as a load and, on the other hand, the device in accordance with the invention.

To AC voltage: 220V-connected two transformers TR1 and TR2. On the secondary startupdelay output for 12-volt incandescent lamp CB. The output are the ammeter and voltmeter. Using mechanical main switch HS is possible to control the circuit of the consumer.

The secondary winding of the transformer TR2 supplies the alternating voltage 48 V on a full-wave rectifier. Thus, a constant voltage of about 60 V battery has a capacitor CE.

Generator NIG produces this sequence of pointed pulses described above in connection with Fig. 5. Peaked pulses are output to which the load is connected 12-volt incandescent lamp. Plug / socket connector main switch HS is mounted potentiometer, so that the device serves as a control intervals between the peaked pulses and, thus, the easiest way allows you to fully control the corresponding current circuit.

Other tests with inductive loads produced similar results energy savings, as the inductive load supplied electro-acoustic transducer with a pressure chamber (powerful loudspeaker) using a device in accordance with the invention. It also turned out to be significant savings accordance with Fig. 6 allows on the basis of comparison to compare conventional type of food and type of food in accordance with the invention, the ohmic load with poor efficiency (incandescent).

In the left part of Fig. 7 shows features of an ideal harmonic oscillations (HS) and four sequences of pulses with different relations pulse duration to medimpulse the interval from 1:7.2 to 1:180. The period T of all oscillatory functions was intentionally configured for a duration of 20 milliseconds, that is located in the lower right part of the drawing HS-function means an exact repetition frequency of 50 Hz. All five of oscillatory functions are (intentionally) the same amplitude A.

The beginning and end of period length T starting at the top point of the positive half wave HS-functions, in Fig. 7 (E) bottom left or exactly in the middle of pulses in the four sequences of pulses to easily represent the Fourier series for the corresponding oscillatory functions. The period T is also presented in the form of full circumference 2 (radian), or 360o.

The duration of the respective pulses are indicated by their half of the "corner solution" p.

In accordance with the particular, calculated and measured amounts of pure harmonic oscillations of certain frequencies and amplitudes as equivalent. If total harmonic components, it turns out the main function.

Voltage corresponding to the five oscillatory functions on the left in Fig. 7 have spectra, as can be seen in Fig. 7 on the right. Should be noted that the amplitude spectra of the harmonic components for the four sequences of pulses is depicted in accordance with a scale drawing of the spectral line sequences peaked pulses presents increased).

As you can see, the amplitude of A spectrum in accordance with Fig. 7 (E) harmonic oscillations corresponds exactly to the amplitude in the time domain.

However, in the spectra of the sequences of pulses contains several harmonic components. A number of the more than impulses.

In accordance with the invention are pointed pulses with a fill factor of 1:3, which is so narrow as possible, about as sharp pulses in accordance with Fig. 7(A), Fig. 7(B) and Fig. 7(C), as well as in accordance with Fig. 7(D).

annamary. Amplitude can be selected are different, otherwise than is schematically shown in Fig. 7.

Particularly favorable for the purpose in accordance with the invention, the spectrum shown in Fig. 7. Almost perfect range is shown in Fig. 7(A) sequence of sharp pulses, which, using the currently available circuit elements in practice is unlikely to be implemented. The individual components of the spectrum are almost all the same size and are accordingly very small amplitude is much smaller than that shown in Fig. 7(A).

Therefore, shown in Fig. 7(A) to the right range is particularly favorable, because on the basis of small amplitudes and short periods of time these individual components of the signal achieved good stability given by the signal circuit.

If a device in accordance with the invention using the generator peaked pulses, which generates shown in Fig. 7(A) peaked pulses with a fill factor of 1:180, you get a very large number of harmonic components, the amplitude of which respectively otnositel is designed in this example respectively less than 1% of pulse amplitude.

The above considerations are valid for the scope of Ohm's law. Ohm's law is valid when the length of the period T (see Fig. 3) more than 100 nanoseconds. The shorter the duration of the period due to non-available electronic structural elements in the present time and the foreseeable future are unlikely to be implemented.

The above considerations show that the use in accordance with the invention is very narrow peaked pulses to power the resistive, inductive, capacitive or complex load constantly achieves a very high stability of the scheme. It is known that when connecting the load to the voltage source, in particular, to a source of alternating voltage, may occur transient processes, the elimination of which requires the adoption of expensive circuit measures. Such problems are eliminated thanks to the application in accordance with the invention peaked impulses.

Fig. 8 schematically shows three cases of energy distribution. Energy flow without losses on practice.

To the left in Fig. 8 case 1 is ideal. From source Q 100% energy protege energy."

Presents in the middle of Fig. 8 case 2 shows frequent situation when most of the energy (in this case 80%) is converted into the consumer into useful work and only 20% is lost.

To the right in Fig. 3 presents case 3, in which only 5% of the submitted energy is converted into useful work, the rest of the energy is lost energy. This case is quite accurately corresponds to the case of an incandescent lamp, in which approximately 5% of the filed of electrical energy converted to light, while the remaining 95% is converted into heat (in most cases undesirable). Using measures in accordance with the invention achieves the improvement described in case 3 the situation in the direction of the case 2.

The above considerations relate primarily to ohmic loads. However, the invention equally can be used with inductive, capacitive or complex loads. If such loads are also not talking about active energy, then reasoning about the seeming flow of energy (inductive or capacitive load) show that using the device in accordance with the invention is achieved not only is about Fig. 1 and 4 devices can be achieved in addition to certain advantages:

a) when turning on the load circuit has a voltage of 0 V, which depends on the respectively selected layout switching scheme,

b) you can realize stepless adjustment from 0 to the maximum value, without requiring the adoption of a special circuit measures. Used to form a peaked pulse sensors are designed so that they are inexpensively allow change medimpulse intervals.

Fig. 9 shows a block diagram of the construction of the electronic siren 100. Fitted exponential horn electroacoustic transducer 106 is connected to terminal cascade 104 not here representing the interest of the amplifier. Schematically represented, and in fact made in the form of semiconductor structural element switch terminal stage 104 is driven by a generator peaked pulses (NIG I) 102, the frequency coming from the generator NIG 102 pointed Dirac pulse is 420 Hz (more precisely: it is the first harmonic oscillation), which corresponds to a given frequency of the siren. Switch terminal cascade 104 with the ATOR) with battery 108. Generator NIG 102 is controlled by control system 112, in the case where we can talk about the known device management software, which is usually in an electronic sirens. In practice the final stage 104 may be composed mostly of the mentioned switch.

In contrast to the known electronic sirens mode siren in accordance with Fig. 9 is a purely digital.

A significant advantage is shown in Fig. 9 siren is the fact that practically does not leak steady-state current. If the target cascade sharp pulse is not supplied, formed by final stage switch is almost open. The internal resistance of the target cascade is almost equal to zero, which ensures operation practically without losses.

On the basis of the nature used in this case pointed pulses along with the operating frequency of 420 Hz there are many higher harmonic components, which generally gives the full sound of the siren.

Siren in accordance with the invention according to Fig. 9 particularly favorable way promotes the use of well-known effect of masking ("Masking Effect"). This obrazets ratio of frequencies, in accordance with Fig. 9 an additional generator peaked pulses NIG II 110. Generator frequency peaked pulses NIG II a few upset regarding the frequency of the oscillator peaked pulses NIG I. Due to this control produces a siren sound, which for psychoacoustic reasons perceived by the listener is much louder than the sound that creates two identical sound sources of equal power. Alternative to generator peaked pulses NIG II, you can provide your own other terminal degree and connect the electro-acoustic transducer to both end stages. Furthermore indicates that a large number of electronic converters can be connected in parallel, serial or compound to a target cascade 104 or to a common pair of amps.

In practical, not shown embodiment, the tower for the sirens are several sirens shown in Fig. 9 type, and exponential horns of each electroacoustic transducer are located at different heights and different angles of radiation relative to the vertical axis of the tower.

Practical tests have shown that the electronic siren 100 in accordance with the invention can generate the power of sound traditional electronic siren with approximately only one third of electrical power. So it can be built with cheaper electronics.

So as when executed siren 100 in NIG I 102, NIG II 110 and terminal stage 104 is not practically runs the steady-state current in this state, the current is almost spent. Yet when the siren 100 required "warm start" of structural elements of electronics.

Siren 100 in accordance with the invention, if desired, can be operated with a very high supply voltage, for example, up to 400 C.

For operation of AC motors using the device in accordance with the invention, it is possible to generate a rotating field, and compared with the conventional devices of motor control are achieved significant energy savings and simplify synchronization.

1. Device for power supply having a predetermined nominal voltage (UZnenn) electric load (L) containing input for connection to the power supply napriagenka output sequence of pulses (NI), moreover, the amplitude of the voltage (UIN) pulses (NI) is greater than the nominal voltage (UZnenn), characterized in that the pulse shaper is the driver pointed pulses (6,68), and the pulses are peaked pulses (NI), and the amplitude voltage (UIN) peaked pulses (NI) at least 1.7 times, and the maximum number of times defined by the square root of the duration marempolskoho interval divided by the duration of pulses (UUP UZnennx SOR (tp/tl), more of nominal voltage (UZnenn).

2. The device for feeding an electric load (L), having a given nominal voltage (UZnenncontaining input for connection to the power supply voltage, an output for connection to the load (L) and driver (6,68) peaked pulses for supply to the connected load, the output sequence of pointed pulses (NI), characterized in that the driver (6,68) peaked pulses performed with an electronic circuit, comprising: (a) entrance (N', L'), mainly connected to the input device to power the load; (b) capacitor (C) that is charged from a source (TI) DC connected to the input of the (N', L'), (C) Obradovi transistor (UI), connected to a reference voltage Ur and o (E2) to the voltage (IC) on the capacitor, this transistor is unlocked as soon as the voltage (IC) on the capacitor exceeds the reference voltage (Ur); (e) is connected through a unijunction transistor (UI) to the capacitor (C) termination transistor (T4), which results in the firing of unijunction transistor (UI) is switched on for the duration of the peaked pulse (NI) and enters a conductive state, (f) and coupled with the termination transistor (T4) exit (1', 2') peaked pulse device to power the load.

3. The device according to p. 2, characterized in that the amplitude of the voltage (UIN) peaked pulse (NI), at least 1.7 times the nominal voltage (UZnenn).

4. The device under item 2 or 3, characterized in that the amplitude of the voltage (UIN) peaked pulse (NI) the maximum number of times defined by the square root of the duration marempolskoho interval divided by the duration of the pulse (UUP UZnennx SOR (tp/tl), more of nominal voltage (UZnenn).

5. Device according to one of paragraphs.1 to 4, characterized in that the peaked pulses (NI) have a constant duration (tl"ptx2">

6. Device according to one of paragraphs.1 to 4, characterized in that the fill factor tl/tpless than 0.1, in particular less than 0,0001, where tlmean pulse duration, tp- duration marempolskoho interval.

7. The device under item 5, characterized in that the fill factor tl/tpis from 0 to 0.3, where tl- constant pulse duration, tp- duration marempolskoho interval.

8. The device according to p. 7, characterized in that the fill factor is from 0 to 0.1, in particular to 0.0001.

9. Device according to one of paragraphs.1 to 8, characterized in that the peaked pulses (NI) are pulses of constant current, i.e., pulses of the same polarity.

10. Device according to one of paragraphs.1 to 9, characterized in that the antiparallel load (L) on (D2).

11. Device according to one of paragraphs.1 to 10, characterized in that it contains a fast-acting electronic switch (66).

12. The device according to p. 9, characterized in that the input is enabled inductive-capacitive filter (62, 64).

13. Device according to one of paragraphs.1 - 12, characterized in that before the output is enabled blocking diode (D1) reverse current.

15. The device according to p. 14, wherein the load is an incandescent lamp.

16. Device according to one of paragraphs.1 - 15, characterized in that the peaked pulses (NI) have a total duration of a maximum of 1000 NS, preferably a maximum of 700 NS.

17. Device according to one of paragraphs.1 to 16, characterized in that the peaked pulses (NI) have a rise time to a maximum of 100 NS.

18. Device according to one of paragraphs.1 to 17, characterized in that the peaked pulses (NI) have a defined functional characteristic duration (tpa maximum of 200 NS, preferably a maximum of 100 NS.

19. Device according to one of paragraphs.1 to 18, characterized in that the peaked pulses (NI) are the decay time to a maximum of 500 NS.

20. Device according to one of paragraphs.1 to 19, characterized in that the smallest period length (T) peaked pulses is about 100 NS.

21. Device according to one of paragraphs.1 to 14 and 16 to 20, characterized in that the load is an electric siren (100).

22. The device according to p. 21, characterized in that the generator (102) pointed pulses controls the amplification of the target cascading (104) that connect the power source (108) with electroacusticas

 

Same patents:

The invention relates to electrical engineering, mainly to the management of public lighting in residential buildings

The invention relates to electrical engineering and is intended for remote control of lighting devices such as incandescent lamps and their protection against self-starting

The invention relates to lighting and can be used for dynamic lighting of various cultural and entertainment events

The invention relates to the field of particle accelerators, and more specifically to generators of powerful high-current pulses, and most can be effectively used to obtain high-current high-voltage pulsesvoltageand pulse duration100 NS

The invention relates to measuring technique and can be used in conjunction with electromagnetic structurename for fault detection and structurele products, in particular, by the method of eddy currents

The control scheme // 2153765

The invention relates to power electronics and can be used in devices for testing circuit breakers

The invention relates to the field of high-voltage pulse technology

The invention relates to a high-voltage pulse technology

Pulser // 2150783
The invention relates to a pulse technique and can be used in automatic control systems and measuring devices

The invention relates to a pulse technique, the technique of automatic control and regulation and can be used for selection of pulses in sign

The invention relates to the field of electrical engineering and can be used in power supplies

The invention relates to the circuitry of electronic devices, namely, integrated electronics used in those measuring devices where it is necessary that the load current is not dependent on the load resistance
Up!