| 摘要 |
PURPOSE:To drive a thyristor only by using one power supply by driving the thyristor by a switching element through a resistor and a capacitor. CONSTITUTION:Three resistors 1-3 are connected in series, another terminal of the resistor 1 is connected to the positive side of a DC power supply E, and another terminal of the resistor 3 is grounded. A capacitor C is connected in parallel with both terminals of the resistor 2. A gate for a self-arc- extinguishing type thyristor S is connected at a node between the resistor 2 and the resistor 3, and a switching element S1 is connected between a node between the resistor 1 and the resistor 2 and the ground. The thyristor S is driven by turning the switching element S1 ON-OFF.
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