SU1401575A1 - Secondary power supply source - Google Patents

Abstract

The invention serves to reduce overall size and increase device reliability. In a device containing an electronic switch 5, a diode 2, a transformer 3, a storage capacitor 4, a series-connected storage capacitor 4, an electronic switch 5, such as a dynistor, and a transformer winding 3 are connected to the alternating voltage source 7. The electronic switch 5 is shunted by a diode 2. The device operates on the falling half-period of the source 7 of alternating voltage. The device provides for the possibility of introducing a low-pass filter 6 between the input terminals and the storage capacitor 4. 2 Cp. f-ly, 1 ill.

Description

SP

ate

The invention relates to the sources of secondary power supply (IHEP) using the primary electrical energy of the AC network 50-400 Hz, 1-1m.

The aim of the invention is to reduce the size and increase the reliability of power supplies.

In a power supply device containing a potential electronic switch, a diode, a transformer and a storage capacitor, a series of series-connected storage capacitor, a potential electronic switch, such as a dynistor and a pulse transformer winding, are connected to the alternating voltage source, and the potential switch is shunted by a diode (the cathode of the diode is connected to the anode potential key).

The IVEP operates on a drop-down section of a half-cycle of a source of alternating sinusoidal voltage.

Converting a low-frequency power source to a high one makes a potential switch after the storage capacitor is charged through the diode and the winding of the pulse transformer to the amplitude value of the half-period voltage and at the Power source the voltage begins to drop. The potential of opening the electric should be significantly less than the amplitude value of the voltage of the power source. In this case, it is discovered due to the difference; voltage on the storage capacitor and source of writing, connected in series through a potential switch. .

In order to ensure the stable operation of the power supply unit and to protect the power supply network from interference caused by the operation of the electronic key, a low-frequency filter is included between the power supply and the power supply unit.

The drawing shows a power supply circuit with power from a variable voltage source. The source contains input terminals 1, a diode 2, a transformer 3, a storage capacitor 4, an electronic switch 5, a low-pass HC-6 filter, an alternating-voltage power supply 7 of 50-400 Hz.

In this case, the electronic switch 5 is connected in series with the primary winding of the transformer 3 and through the storage capacitor 4 is connected to the input terminals 1 directly or through LC filters that are connected to the alternating voltage power supply 7.

The device works as follows

When connecting IVEP to source 7

alternating voltage the rising voltage of the half-period through diode 2 and; the primary winding of the pulse transformer 3 charges the storage-; low frequency capacitor 4 to the amplitude

voltage values of supply source 7. When the voltage drops in the power supply 7, the voltage on the capacitor 4 remains, because it cannot discharge through diode 2 and the switch 5 until it reaches a difference equal to the opening voltage of switch 5. After opening switch 5, capacitor 4 quickly circuit discharge: key 5 - transformer winding

3 - filter capacitor 6, for the magnitude of the voltage difference across the capacitor 4 and the network 1.

The inductance of the filter 6 will not allow a surge in current to the power source network 1.

After the partial discharge of the capacitor 4, the continuous reduction of the mains voltage again creates the condition of the difference in voltage between the capacitor 4 and the power source 7, and the discharge cycle of the capacitor 4 is stimulated.

Thus, the discharge energy of the capacitor 4 can be realized up to the secondary winding of the transformer 3, and the magnitude of this energy is determined by the capacitance of the capacitor 4 and the magnitude of the opening voltage of the key 5.

invention formula

1. A secondary power supply j containing a storage capacitor, an electronic switch, a diode and a transformer, which is different from the fact that, in order to reduce overall dimensions and increase reliability by simplifying, the electronic switch with the primary winding of the transformer connected in series storage capacitor to the input terminals of the source, while the electronic key is bypassed

1401575

the diode whose cathode is connected to the purpose of increasing the stability of operation

the anode of the electronic key device, between the input terminals 2. The source according to claim 1, different and connected in series with the fact that the electronic storage capacitor, the electric key is made on the dynistor key and the primary winding

3, Source PP. 1 and 2, on the t-transformer, the LC filter is switched on, and with the fact that, lower frequencies.

Claims (3)

Claim I, Secondary power supply j containing a storage capacitor, an electronic switch, a diode and a transformer, characterized in that, in order to reduce the dimensions and increase reliability by simplifying, the electronic switch with a primary transformer connected in series is connected through the storage capacitor ' to the input terminals of the source, while the electronic key is shunted by a diode, the cathode of which is connected to the anode of the electronic key. 2. Source pop. I, with the fact that the electronic key is made on a dinistor. 3. The source according to paragraphs. 1 and 2, characterized in that, in order to increase the stability of the device, between the input terminals and series-connected storage capacitor, an electronic key and the primary winding of the transformer included low-pass filter.