Device for charging the energy storage

 

The invention relates to a device for charging rechargeable batteries of the network through the converters and can be used to charge energy storage in various automation devices and computing. The technical result is an extension of the functionality lies in the fact that the device is in the buffer mode, it allows to determine the presence or absence of a battery charge circuit, and also to eliminate the possibility of a negative output voltage in case of reverse polarity when installing the battery. The device includes a DC-to-DC, input connected to the voltage source, and output to the first input of the key element and to the input of the pulse generator charge control, the output of which is connected to the control unit determine whether the battery output and the second input of which is connected respectively with the second entrance and exit of a key element. The key element through the diode connected to the output filter, and through the switch to the positive pole of the battery and to the input of the differential display reverse polarity. 1 C.p. f-crystals, 3 ill.

The invention relates the charge of energy storage in various automation devices and computing.

The known device for charging the energy storage device, such as a charger for the battery, containing a rectifier, a current sensor, a correction circuit, made in the form of a negative feedback circuit consisting of a diode and a resistor, the voltage comparator terminals for connecting the battery, the current regulator and the reference voltage, the first power output of the current sensor is connected to the terminal connection of the negative battery pole and the second power and one potential terminals are connected to a common point device, the power input of the current regulator is connected to the terminal connection of the positive pole of the battery, and analog input negative feedback is connected to another potential output of the current sensor, the output of the voltage comparator is connected to the digital control input of the current regulator, and one of the inputs is connected to the terminal connection of the positive pole of the battery, and the total measuring wire is connected to the second potential output of the current sensor, one input of the voltage reference is connected to the rectifier, and the other input connected to the second potential sensor output that is connected to the output of the voltage reference, and the other output through a resistor connected to the output of the voltage comparator [1].

It is also known a device for charging the energy storage device containing a power source, a static inverter DC to AC with the key elements, the output transformer, the master oscillator with key elements and a transformer with more windings, rectifier, inductor, connected between the output transformer and rectifier, the current sensor charge connected between the rectifier and drive frameshadow chain in the form of a transistor and a capacitor connected to the leads of the underlying winding of the transformer oscillator, and the collector and emitter of transistor timing circuit included in the diagonal of the rectifier bridge, the other diagonal of which is connected respectively to the base of one transistor oscillator and to one terminal of the additional winding of the transformer oscillator, a second output which is connected to the base of another transistor oscillator [2].

The disadvantage of this device lies in the fact that they are not intended for operation in the buffer mode, which may be necessary, for example, when work is come on backup power from the battery. It is necessary to have current information about the presence or absence of the battery on the remote object and in case of any problems to repair or install a new battery.

In the claimed invention was the task of developing a reliable charger, which would allow at a supply voltage equal to the battery voltage during operation in the buffer mode, to determine the presence or absence of the battery charge circuit, and also to exclude the possibility of reverse polarity when installing the battery.

The described problem is solved due to the fact that in the device for charging the energy storage device containing the Converter DC voltage connected to the power source, and an output filter, put the key element, the pulse generator charge control unit determine whether the battery circuit indication reverse polarity, the diode and the resistor, and the output of the inverter DC voltage is connected to the first input of a key element and to the input of pulse generator charge control, the output of which is connected to the control input of the detection of the battery, an output connected to a second input of the key element, the output of which is connected to and through the switch - to the positive battery terminal and to the input of the differential display reverse polarity, the diode cathode connected to the input of the output filter and to one terminal of the second resistor, the second terminal of the first resistor, the second terminal of the second resistor and the negative terminal of the battery is connected to the common wire. When this block determine whether the battery contains a transistor, second and third diodes, the third, fourth and fifth resistors, a capacitor and a series-connected element AND-NOT and the inverter, the inverter output through the third resistor is connected to the base of the transistor, the collector of which is the output of the block detection battery, the first input element AND is NOT managing unit determining the presence of a battery, the anodes of the second and third diodes connected to one of the conclusions of the fourth resistor and to one of the terminals of the capacitor, the cathode of the second diode is connected with the second input element AND-NOT and single output of the fifth resistor, the second terminal of which the second output capacitor and the emitter of the transistor is connected to ground, the cathode of the third diode connected to the second output of the fourth resistor, the junction point of which is the second input unit determine whether the battery is near, unit determining the presence of a battery, the battery is not constant, and in the key mode, it is also possible to determine the presence or absence of the battery, operating in buffer mode, and the presence in the circuit of diode connected between the key element and the output filter allows you to exclude the possibility of a negative output voltage in case of reverse polarity when installing the battery.

Awareness-patent search technical solutions, identical to declare, was not found.

The invention is illustrated in the drawings, where Fig.1 presents a functional diagram of the device of Fig.2 shows a specific example of implementation of key elements of Fig.3 is an example of a specific circuit implementation of the block to determine whether the battery.

The proposed device for charging the energy accumulator includes (see Fig.1) the Converter 1 voltage DC input connected to the output of a voltage source (not shown), and the output connected to the first input key element 2 and to the input of the pulse generator 3 charge control, the output of which is connected to the control input unit 4 determine the presence entrance and exit key element 2, the output of which is connected with the anode of the diode 5, the cathode connected to the input of the output filter 6, and through the switch 7 from the positive pole of the battery 8 and the first output circuit 9 indication of reverse polarity, the negative pole of the battery 8 and the second output circuit 9 display polarity directly, and the anode and the cathode of the diode 5 through the first 10 and second 11 resistors respectively connected to the common wire.

Converter 1 voltage is a voltage regulator and a current regulator and provides stabilization of the voltage and current of the battery 8 and the power generator 3 pulse charge control.

Key element 2 (Fig.2) is implemented in a field-effect transistor and is designed to provide the battery in the key mode, and to protect the Converter 1 in the case of polarity reversal of the battery during installation.

Generator 3 pulse charge control is designed to generate the control pulses of the battery.

Unit 4 determine whether the battery is shown in Fig.3 and allows you to determine if the battery while its in the buffer mode, the voltage Converter 1. Block 4 contains the element AND NOT 12, an output connected to the input of invert is vertor 13 through the third resistor 17 is connected to the base of transistor 14, the collector is the output unit 4 to detect a battery and connected to the second input key element 2, the first input element AND-NOT 12 is a control input unit 4 to detect a battery and is connected to the generator output 3 pulse charge control, the second anodes 15 and 16 third diode is connected to one of the conclusions of the fourth resistor 18 and to one of the terminals of the capacitor 20, the cathode of the second diode 15 is connected with the second input element AND-NOT 12 and one output of the fifth resistor 19, the second conclusion which, the second lead of the capacitor 20 and the emitter of transistor 14 is connected to ground, the cathode of the third diode 16 is connected to the second output of the fourth resistor 18, the connection point which is the second input unit 4 to detect a battery and connected to the output core element 2. The third diode 16 is designed for rapid discharge of the capacitor 20, and the fourth resistor 18, is in parallel with the third diode 16, sets the charge current of the capacitor 20.

The device operates as follows.

The load is supplied by the source of DC power (not shown). In the absence of the supply voltage due to some reasons the power U electronic switch (not shown).

Supply DC voltage supplied from the power source to the load as the main supply voltage and to the input of the Converter 1, which provides stabilization of the voltage and current at the appropriate level required to charge the battery 8 and the power generator 3 pulse charge control. Stable voltage output from the inverter 1 to the input of the pulse generator 3 charge control, the output of which receive pulses of desired frequency and duty cycle. These pulses are received at the control input unit 4 to determine whether the battery.

In the absence of a scheme of arrangement of the battery 8, or when the open switch 7, the capacitor 20 unit 4 to detect a battery (see Fig.3) is discharged. At the second input element AND-NOT 12 the signal is present "logic 0", the output of inverter 13 is also present signal is "logic 0". When the output transistor 14 block 4 determine whether the battery and the FET key element 2 is closed and the input of the output filter 6 voltage is not supplied.

When connected to the battery 8 to the second input element AND-NOT 12 unit 4 a signal "logic 1", and the control pulses the I signal, which controls the field-effect transistor a key element 2. This signal opens the transistor is a key element 2 and holds it open for a longer period of time, when the battery 8 from the Converter 1, and closes it for a short period of time. In this short period of time, the battery 8 is not happening, information about the presence of the battery with the key element 2 is supplied to the second input unit 4 to determine whether the battery.

If there is a supply voltage powers the load from the power source.

The diode 5 is designed to protect the load from possible reverse polarity when installing the battery 8, the output filter 6 provides the desired level of output voltage ripple.

Thus, the proposed device in comparison with analogues has broader functionality due to the fact that he can work in the buffer mode and thus allows to determine the presence or absence of a battery charge circuit, and also to eliminate the possibility of a negative output voltage in case of reverse polarity when installing the battery.

SOURCES of INFORMATION

1. Testimony P Is 02, publ. 23.08.1980,

Claims

1. Device for charging the energy storage device containing the Converter DC voltage connected to the power source, and an output filter, characterized in that it introduced a key element, the pulse generator charge control unit determine whether the battery circuit indication reverse polarity, the diode and the resistor, and the output of the inverter DC voltage is connected to the first input of a key element and to the input of pulse generator charge control, the output of which is connected to the control input of the detection of the battery, an output connected to a second input of the key element, the output of which is connected to the second input unit to detect a battery, to the anode of the diode and to one terminal of the first resistor, and through the switch to the positive battery terminal and to the input of the differential display reverse polarity, the diode cathode connected to the input of the output filter and to one terminal of the second resistor, the second conclusion of which, the second terminal of the first resistor and the negative terminal of the battery is connected to the common wire.

2. Device for charging the energy storage under item 1, otlichiy and fifth resistors, capacitor and series-connected element AND-NOT and the inverter, the inverter output through the third resistor is connected to the base of the transistor, the collector of which is the output of the block detection battery, the first input element AND is NOT managing unit determining the presence of a battery, the anodes of the second and third diodes connected to one of the conclusions of the fourth resistor and to one of the terminals of the capacitor, the cathode of the second diode is connected with the second input element AND-NOT and single output of the fifth resistor, the second terminal of which the second output capacitor and the emitter of the transistor connected to the common wire, the cathode of the third diode connected to the second output of the fourth resistor, a connection point which is a second input unit to detect a battery.

 

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