| 摘要 |
<p>PURPOSE:To decide the range of a voltage setter almost without effect to the gain of a controller by applying a variable bias value to the input of a gate pulse phase shifter. CONSTITUTION:A deviation operational amplifier 24 calculates and amplifies a deviation between the output of a voltage setter 28 and the output of a voltage feedback setter 23. An operational amplifier 31 calculates the output of the amplifier 24 and the output of a bias setter 29 and applies a control signal to a gate pulse phase shifter 30 for controlling the phase of a thyristor converter 3. The range of the voltage setter can be decided almost without effect to the gate of the controller by regulating the set value of the setter 29.</p> |
