SU729751A1 - Charging-discharging device - Google Patents

Description

one

The invention relates to the field of electrical engineering, in particular to auxiliary devices for charging and discharging power sources, and can be used, for example, to regenerate galvanic cells and desulfate lead batteries as they are charged.

A device is known for producing an asymmetric current, based on a half-wave diode rectifier 1. In order to form a discharge circuit of a charged battery, the diode is bounded by a resistor. However, this device is distinguished by the absence of separate adjustment of the charge and discharge currents, which limits its scope.

A device is known for forming an asymmetric current using counter-parallel thyristors 2. The latter require individual triggering signals and isolate the input circuits of both thyristors from each other. This is accomplished by using two separate control circuits for the isolation transformer with one control circuit, which makes it difficult to control the current.

A charge-discharge device containing an alternating current source (mains transformer), a rectifier, a trinistor current regulator, the control circuit of which is based on the time of a driving capacitor connected to one of the extreme leads of the mains transformer via a variable resistor and one synchronizing diode. The other end of the winding is connected to the anode of the other synchronizing diode 3. The device allows you to adjust the load current in a wide range, for example, when a battery is charged or discharged. However, this device does not provide separate adjustment of charge and discharge currents during the formation of asymmetric current.

The aim of the invention is to provide separate adjustment of charge and discharge currents.

Claims (3)

The goal is achieved by the fact that an additional variable resistor connected to the cathode of another synchronizing diode is connected to the time of the master capacitor of the control circuit, and the rectifier is made in a two-phase circuit. The drawing shows a diagram of one of the variants of the proposed device. Transformer winding 1 through symmetrical trinistor 2 and diode 3, shunted by resistor 4, is connected to terminals for connecting a regenerable galvanic cell (battery) 5. A two-voltage rectifier with a midpoint b of the trinistor control unit is connected to a parametric stabilizer 7, the output of which is in its the queue is connected to the node 8 of the discharge and the time is given to its capacitor 9. The resistors 10 and 11 are connected to each other and to the capacitor 9 and are connected via the synchronizing diodes 12 and 13 to the extreme terminals of the winding sformatora. A pulse shaping unit 14 is connected to the timing of the specifying capacitor 9, which includes a trinistor 2. The proposed device operates as follows. When charging the regenerated element 5, the influence of resistor 4 can be neglected, since it is shunted by diode 3. By varying the switching times of the trinistor 2 with, for example, resistor 10, the charge current can be adjusted. The trinistor is closed at the time of the transition by the network voltage of the line of zero potential. When the regenerated element 5 is discharged, the diode 3 is locked, and the resistor 4 limits the current amplitude, and its effective value is determined by the current flow time, i.e. the time of switching on the trinistor and is controlled by the resistor 11. It should be noted that a variant of the device without diode 3 is possible or resistor 4. The use of a separate adjustment of the charge and discharge currents in the described charge-discharge device makes it possible to vary the battery charge parameters asymmetrically within wide limits and increase the effect NOSTA their use. BACKGROUND OF THE INVENTION A charge-discharge device containing an alternating current source (transformer), rectifier, trinistor current regulator, the control circuit of which is made based on the time of the driving capacitor connected to one of the extreme leads of the transformer winding via a variable resistor and one synchronizing diode and the other extreme lead of the winding is connected to the anode of another synchronizing diode, characterized in that, in order to ensure the separation adjustment of the charge and discharge currents, by the time yuschemu capacitor control circuit connected to an additional variable resistor coupled to the cathode of another diode clock, and a rectifier circuit configured by the two-phase. Sources of information taken into account in the examination 1.Orlov V. A. Small-sized current sources. M., Voenizdat, USSR Ministry of Defense, 1965, p. 178, fig. 89 a. 2. Thyristors (technical reference). M., “Energie, 1971, p. 208, fig. 9-16. 3. Zorokhovich A.E. and others. Devices for charging and discharging batteries. M., “Energie, 1975, p. 123, fig. 5-12 (prototype).