| 摘要 |
<p>PURPOSE:To prevent the malfunction and improve the reliability, by inserting a resistance, a coil, and a capacitor, which suppress the variance of power supply, between a controller and a programmer. CONSTITUTION:Power supply circuits of a controller 3 and a programmer 4 are connected mutually through a connector 7, and a circuit where a series circuit consisting of a resistance R and a capacitor C is connected in parallel with a coil L is inserted between a power source VCC and a ground GND. When the programmer 4 is attached or detached through the connector 7, the variation of power supply due to contacting or the like is suppressed by the coil L, and the change of the coil impedance accompanied with contact chattering is absorbed by the capacitor C.</p> |
