Constant power supply unit of electric heating apparatus

Details Constant power supply unit of electric heating apparatus Constant power supply unit of electric heating apparatus

1989-03-08

1990-12-04

Salce, Patrick R.

Electricity: power supply or regulation systems

Input level responsive

Phase controlled switching using electronic tube or a three...

323299, G05F 500

Patent

active

049756303

ABSTRACT:
A constant power supply unit of an electric heating apparatus is disclosed. A voltage sensing circuit generates a DC reference signal corresponding to the nominal value of an AC supply voltage. A timing pulse generator generates a rectangular waveform signal during one of every four cycles. A trigger generator generates a trigger signal at zero-cross points determined by the combination of outputs of a voltage sensing circuit and the timing pulse generator. A power control circuit controls the input power to the electric heating apparatus by the trigger signal, thereby allowing a constant power supply to the electric heating apparatus regardless of the nominal value of the AC supply voltage which may be either 220 volts or 100 volts.

REFERENCES:
patent: 4168476 (1979-09-01), Petrizio
patent: 4687896 (1987-08-01), Baik
patent: 4689548 (1987-08-01), Mechlenburg

Affiliated with

Also associated with

Rating

Constant power supply unit of electric heating apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Constant power supply unit of electric heating apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constant power supply unit of electric heating apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-885053