Abstract: A pulse high frequency power supply includes a plurality of power supply branches connected between the input and the output of the supply. Each power supplying branch includes a capacitor which can be charged by a first silicon-controlled rectifier and subsequently discharged by a second silicon-controlled rectifier. A control circuit, which can include a microcomputer, generates sequences of pulses to charge each storage capacitor in each branch at a predetermined time and to discharge each charged capacitor thereby providing a plurality of temporally spaced-apart current pulses to the load.

Abstract: An apparatus for the generation of ignition voltage to a spark plug within an ingition system of an automobile includes an integrated circuit inverter for converting DC power source voltage into a high frequency voltage which is stepped-up by a transformer and rectified to charge a capacitor. The charge stored on the capacitor is discharged by applying a trigger pulse to a silicon controlled rectifier, through a high voltage ignition coil for igniting the spark gap of a spark plug. The trigger pulse is produced by a timing control circuit which utilizes a pre-existing timing signal of the ignition system to produce the trigger pulse. The secondary voltage of the ignition coil produces between 20,000 and 60,000 volts.

Abstract: An apparatus for the generation of ignition power and its circuits is composed of two transformers and one discharging capacitor. The triggering signal is taken from the alternating current supply voltage. The stored charge is discharged through a primary winding of a step-up transformer. The secondary voltage is stepped up to several ten thousand peak volts which is enough to make an ignition spark through a large air gap. The first half wave of alternating current power charges the capacitor and the second half wave triggers an SCR to discharge the capacitor. The charging and discharging are completed during a single period of a line power wave.