| 摘要 |
PURPOSE:To satisfy easily both the stability and the responsiveness of a control system by providing a circuit outputting a phase difference of two signals as a pulse width and a circuit changing the peak value of the pulse according to the phase. CONSTITUTION:A pulse signal C in response to a phase difference between a reference pulse A and a pulse B and a pulse signal D going to ''H'' when the phase difference between the reference pulse A and the pulse B is pi radian or over are outputted from a phase comparator 4. When the phase difference between the reference pulse A and the pulse B is pi radian or below, the amplitude of the pulse C at a terminal 3 is VZ. When the phase difference between the reference pulse A and the pulse B is pi radian or over, a transistor 6 is turned on by the pulse signal D and the amplitude of the pulse at the terminal 3 becomes VCC. |
