| 摘要 |
PURPOSE:To prevent the circuit malfunction after power-off by inserting a diode between a base of a driven transistor (TR) and a reverse bias supply TR collector while the anode is directed toward the driven TR. CONSTITUTION:The diode 12 is connected between the base of a TR 11 and a collector of a TR 10 while the anode is directed toward the base of the TR 11. After power-off, even when the reverse bias power supply is made turned off, the bypass from the forward bias power supply to the driven TR 11 is prevented by the diode 12 and the possibility of mistriggering the TR 11 is precluded.
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