Abstract: A control circuit is configured to control the charge and discharge of a flash unit. The flash unit includes an anode, a cathode, and a trigger electrode. The control circuit includes a charging circuit and a triggering circuit. One terminal of the charging circuit is coupled to a charging terminal and another terminal is coupled to the anode and the cathode. One terminal of the triggering circuit is coupled to a triggering terminal, another terminal is couple to the trigger electrode. The charging circuit includes a first capacitor coupled to the cathode and a second capacitor coupled to the anode. When the charging terminal receives a charging voltage and the triggering terminal receives a high-level voltage, three times charging voltage is formed between the anode and the cathode; then the flash unit generates a flash.

Abstract: A control circuit is configured to control the charge and discharge of a flash unit. The flash unit includes an anode, a cathode, and a trigger electrode. The control circuit includes a charging circuit and a triggering circuit. One terminal of the charging circuit is coupled to a charging terminal and another terminal is coupled to the anode and the cathode. One terminal of the triggering circuit is coupled to a triggering terminal, another terminal is couple to the trigger electrode. The charging circuit includes a first capacitor coupled to the cathode and a second capacitor coupled to the anode. When the charging terminal receives a charging voltage and the triggering terminal receives a high-level voltage, three times charging voltage is formed between the anode and the cathode; then the flash unit generates a flash.