| 摘要 |
PURPOSE:To reset a latch means for feeding a voltage control data to a digital/ analog converting means by a circuitry wherein overvoltage or overcurrent detecting means provided for a plurality of voltage output circuits connected in cascade detect an overvoltage or an overcurrent. CONSTITUTION:A plurality of voltage output circuits are connected in cascade. A plurality of housings are connected with the common of corresponding voltage output circuits and a latching means 80 latches a voltage control data and then feeds the voltage control data to a digital/analog converting means 82. The latching means 80 is reset when an overvoltage or an overcurrent is detected by overvoltage or overcurrent detecting means 84-94. Upon occurrence of overvoltage or overcurrent, the voltage control data is modified to nullify the output from the digital/analog converting means thus preventing breakdown of other circuit or electric shock. |
