SU1599573A1 - Device for supply of pulsed transformer - Google Patents

Abstract

The invention relates to electromechanics, in particular to power devices for pulse transformers with capacitive energy storage, and can be used in electric spark generators for firing fuel mixtures. The purpose of the invention is to increase efficiency and reliability. For this, a diode 6 containing rectifiers 1, 2, a storage capacitor 3, an additional capacitor 4 is inserted into the power supply device of the pulse transformer, providing a discharge of the storage capacitor 3 after the discharge of the additional capacitor 4, which provides an increase in the duration and energy of the spark discharge. 3 hp ff, 1 ill.

Description

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 The invention relates to electromechanics, in particular to devices for the ignition of electric-spark transformers with capacitive energy stores, and can be used in electric-spark generators for firing fuel mixes.

The purpose of the invention is to increase efficiency and reliability by increasing the coefficient of energy utilization of the storage capacitor and increasing the duration of the spark discharge. : The drawing shows a diagram of the power supply device of an electric spark transformer

The device contains the first and second rectifiers 1 and 2, connected respectively to the storage capacitor 3 and the additional capacitor (Latr 4, control switch 5 and diode 6, which form a series circuit with the capacitor 3 and the output of the device. the second output is connected to the first output of the capacitor 3, and the first output is connected to the cathode of the diode B. Key 5 is connected in series with the primary winding of the pulse transformer 7. The input of the first rectifier 1 is the first; the input terminal of the power supply device: pulse The second transformer, the second; the input terminal of which is the second rectifier input, and the third input terminal of the device is the second output of the storage capacitor 3, which is connected to the first output of the additional capacitor through the serially connected controllable switch 5 and the primary winding of the pulse transformer 7 4. Voltages from terminals 1 and 2 supplied from a source of alternating current or pulsed current are supplied to capacitors 3 and 4, charging them, and the additional voltage is charged by a high voltage. A capacitor 4, having a smaller capacity than the accumulator capacitor 3,

When the control key 5 is closed, the voltage present in the circuit of the successively connected capacitor 3 and capacitor 4 is applied to the primary winding of the pulse transformer. On the side of the high voltage winding of the transformer, a spark is generated in the discharge, the current in the windings of the transformer increases, and the voltage ya to the capacitor 4 drops.

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When an additional capacitor 4 is reached at the output of the diode b at the point of connection of the additional capacitor 4, the diode 6 opens at the connection point of the storage capacitor 3, the diode 6 opens and the voltage from the capacitor 3 is supplied to the transformer primary winding. transformer: first the voltage required to generate a spark is applied, and then a lower voltage to maintain the spark is supplied from capacitor 3 through an open diode d 6.

 Due to the smaller capacitance of the capacitor 4, when the switch 5 is closed, the additional capacitor discharges faster than the storage capacitor 3, therefore, in ensuring the duration of the spark discharge, the energy of the additional capacitor 4 is negligible, which allows for optimal selection of the voltage on the storage capacitor 4 and its capacitance in order to maximize the energy of the storage capacitor to maintain the duration of the spark discharge, taking into account the specific design of the pulse sleepy transformer.

A positive effect occurs when the charge of the storage capacitor is three or more times greater than the charge of the additional capacitor. The outcome of this relationship is chosen

capacitors, i.e. C, / C ...

 7

Claims (4)

1. A power supply device for a pulse transformer containing a first expander, the input of which is the first input terminal of a power supply device for a pulse transformer, the output of the first output capacitor is connected to the first output of a storage capacitor, the second rectifier whose input is the second input output of the device power supply of the pulse transformer, the output of the second rectifier is connected to the first output of the additional capacitor, a diode, an impedance 5th transformer, the primary winding of which is connected with a control key, characterized in that, with the aim five increase efficiency and reliability, the second plate of the additional capacitor is connected to the first plate of the storage capacitor, the second plate of which is the first input terminal of the power supply device of the pulse transformer, connected in series with the control switch and the primary winding of the pulse transformer is connected to the first plate of the additional capacitor, parallel to which is connected a diode, the anode of which is connected to the first output of the storage capacitor. 2. The device according to claim 1, characterized in that the values capacities of storage and additional capacitors are selected from the ratio Sn -WITH-- . 3, where is a capacitor capacitor; C - additional capacitor, ABOUT five 3. The device according to claim 1, so that the drive is made in the form of a bridge. 4. The device according to claim 1, so that the drive is made in the form of voltage. about tl and - second discharged about tl and - the second booster