| 摘要 |
PURPOSE:To control the rise-up and breaking of an output voltage for an actuator freely and make any special control circuit unnecessary by a method wherein the frequency and the rate of ON/OFF of switching of a switching power source are changed by the signals of the control unit of a logical circuit. CONSTITUTION:Output units 3-5 are constituted of output transistors, operated by a comparator signal, a dead time control signal and the output signal of an error amplifier receiving a triangular wave outputted from am oscillator. Logical circuit units 2-6 are constituted of a logical circuit, controlling an actuator, and a control unit, operating the actuator. According to this method, a rush current upon throwing a power source for the actuator may be suppressed without adding any special control circuit and an output voltage may be controlled arbitrarily by the control signal of the logical circuit. |
