Timer device controlled by a switch

Details Timer device controlled by a switch Timer device controlled by a switch

1994-12-29

1997-07-22

Krishnan, Aditya

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

G05F 100

Patent

active

056507160

ABSTRACT:
According to the timer device of the invention, a time-setting part supplied from the power supply sets up the period from the opening instance of said switch to the instance that the magnitude of current in the capacitor comes down under a specified value, as said current-supply period, and a current-controlling part allows the current to flow from said power supply to said load during said current-supply period determined by said time-setting part, and a switch makes the time-setting part operate at opening instance of the switch.
Therefore, the timer device of the invention can reduce the loss of power during the waiting period. And when the magnitude of the current flowing through the time-setting part and the current-controlling part in open-state of the switch, in order that the decrement of the current in the current-controlling part makes the current in the time-setting part rapidly decrease, these parts are interconnected with each other.
The timer device of the invention as mentioned above provide effects that it can reduce the recovering time to prepare for the sequential operation, and makes the magnitude of the current supplied from the power supply to the load stable.

REFERENCES:
patent: 5396155 (1995-03-01), Bezdon et al.

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