The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 29, 2002

Filed:

Jun. 25, 2001
Applicant:
Inventors:

Sung-ho Lee, Suwon, KR;

Young-won Cho, Suwon, KR;

Tae-soo Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 6/68 ;
U.S. Cl.
CPC ...
H05B 6/68 ;
Abstract

A method for controlling a microwave oven including a power supply part supplying an AC power, a high voltage transformer generating a high voltage with the AC power generated from the power supply part, a magnetron generating electromagnetic waves with the high voltage generated from the high voltage transformer, and a control signal generator part supplying a control signal to the magnetron, the method including the steps of: setting up a reference oscillation time; measuring the time when the magnetron starts being oscillated according to the control signal; comparing the reference oscillation time with the oscillation start time; and adjusting a pulse width of the control signal where the reference oscillation time is longer than the oscillation start time. With this configuration, the temporary surge operation and the noise generation can be lowered in the hot state, thereby serving to enhance a stability of the circuit.


Find Patent Forward Citations

Loading…