Power supply circuit

Details Power supply circuit Power supply circuit

1992-07-17

1995-02-07

Hoff, Marc S.

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

307 34, 307 39, H02M 300

Patent

active

053878205

ABSTRACT:
An apparatus using a battery as a power source requires a battery having an extended life time. A burden upon a battery can be reduced by operating the inner circuit at a low voltage and current. The present invention aims at providing a compact and low power consuming apparatus. A battery used as a power source drives a circuit for a low voltage circuit system and a switching circuit which switches power supply when the battery voltage becomes a preset voltage. A circuit for a high voltage circuit is directly driven by the battery when the battery voltage is high, and the circuit is powered from the output (for example, 1.5 volts) of a step-up circuit when the battery voltage is low. Switching of power sources is made in such a manner, resulting in low power consumption. Extension of life time of battery, and reduction in size of battery and apparatus can be achieved.

REFERENCES:
patent: 4221111 (1980-09-01), Onda et al.
patent: 4435745 (1984-03-01), Eisele et al.
patent: 4451743 (1984-05-01), Suzuki et al.
patent: 5161097 (1992-11-01), Ikeda

Affiliated with

Also associated with

Rating

Power supply circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power supply circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1112515