Title:
FINE VOLTAGE/CURRENT CONTROLLER
Document Type and Number:
Japanese Patent JPS61254076
Kind Code:
A
Abstract:
PURPOSE:To prevent a hysteresis phenomenon by operating the constant current of a bypass current circuit and the current of a controller by a triac. CONSTITUTION:The fine voltage/current controller of an actuator 9 such as a motor is composed of a supply circuit 1 made or a triac BCR, a bias current circuit 2 and a controller 3. The circuit 2 is formed of resistors 10, 11 between lines 5 and 8, and the first trigger element 12, and a constant-current determined by the resistors 10, 11 is flowed to the gate terminal 13 of the triac BCR. The controller 3 is composed of a capacitor 16, a variable resistor 14, and the second trigger element 17, the triac BCR is operated through the element 17 by a time constant determined by the capacitor 16, a variable resistor 14 (14a) and a resistor 15 to energize the actuator 9.
Inventors:
YONEHARA HIROSHI
Application Number:
JP9457885A
Publication Date:
November 11, 1986
Filing Date:
May 04, 1985
Export Citation:
Assignee:
ROYAL DENKI KK
International Classes:
H02M1/08; H02M5/257; (IPC1-7): H02M1/08
Domestic Patent References:
| JPS51109452A | 1976-09-28 | |||
| JPS5411538U | 1979-01-25 |
Attorney, Agent or Firm:
Katsuyama Road