Title:
LOAD CONTROLLER WITH TIMER FUNCTION
Document Type and Number:
Japanese Patent JPS60254207
Kind Code:
A
Abstract:
PURPOSE:To vary easily the load supply power by turning off the load automatically when a fixed period of time elapses after a switch is turned on and at the same time attaining the manual ON/OFF of the load at any time. CONSTITUTION:A switch SW of a load controller is always kept off, and a pulse generating circuit 1 is actuated when the SW is turned on. Thus a positive pulse +P is supplied to an ON/OFF holding circuit 2 to keep this circuit in an ON state. Then an oscillation circuit 3 works to supply the oscillation pulses to a drive circuit 4 for ON/OFF drive of a load 5. While a timer circuit 6 is started with ON of the circuit 2, and the circuit 2 is turned off after a fixed period of time and kept in this OFF state. In case the switch SW is turned off while the circuit 2 is kept on, the circuit 1 produces a negative pulse -P and turns off the circuit 2 forcibly.
Inventors:
MIYAJIMA MASAYOSHI
Application Number:
JP11170084A
Publication Date:
December 14, 1985
Filing Date:
May 30, 1984
Export Citation:
Assignee:
KUROI ELECTRIC CO LTD
International Classes:
G05B24/00; G05B19/02; H03K17/28; (IPC1-7): G05B24/02
Domestic Patent References:
| JPS5533089A | 1980-03-08 |
Attorney, Agent or Firm:
Hisao Komori