| 摘要 |
PURPOSE:To make the voltage or current variable to a load of a non-control system in the constant range by inserting a variable resistor between the connecting point of a starting resistor and a condenser and the base of a transistor. CONSTITUTION:A variable resistor 11 is inserted between the connecting point P of a starting resistor 4 and a condenser 5 and the base of a transistor 3. An inverter transformer 2 or a transistor 3 or the like is so designed as to obtain the predetermined current or voltage for loads 6a, 6b. A control in a feedback system having a current detector 9 and a comparison detector 10 is performed only for the load 6a, and when the resistance value of the resistor 11 is altered in this state, the voltage or current of the load 6b is varied. |
