Power source apparatus for electronic equipment

Details Power source apparatus for electronic equipment Power source apparatus for electronic equipment

1989-11-15

1991-06-04

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

323299, G05F 146

Patent

active

050217283

ABSTRACT:
A power source apparatus used in electronic equipment includes a power source for supplying a power source voltage, a voltage transformer for transforming the power source voltage supplied from the power source into a voltage different from the power source voltage, a load driven by the voltage supplied from the power source, a transistor for switching between the voltage output from the voltage transformer and the voltage directly output from the power source and supplying one of the voltages output from the voltage transformer and the power source to the load, and a controller for switching the transistor to select the voltage output from the voltage transformer when a level of the power source voltage exceeds a predetermined value, and for switching the transistor to select the voltage directly output from the power source when the level of the power source voltage is below the predetermined value.

REFERENCES:
patent: 4404624 (1983-09-01), Yamazaki
patent: 4441825 (1984-04-01), Morokawa
patent: 4485432 (1984-11-01), Kidena et al.
patent: 4528459 (1985-07-01), Wiegel
patent: 4683382 (1987-07-01), Sakurai et al.
patent: 4730122 (1988-03-01), Dreibelbis et al.

Affiliated with

Also associated with

Rating

Power source apparatus for electronic equipment 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 source apparatus for electronic equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power source apparatus for electronic equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1028951