Title:
PHASE CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JPS61180570
Kind Code:
A
Abstract:
PURPOSE:To reduce a containing space and the weight of a phase control circuit by forming a synchronizing signal at every one period of a power source voltage, and constructing to form a phase control signal which is lacked only with the synchronizing signal by interrupting. CONSTITUTION:An AC power source E is supplied to a transistor Q, and a synchronizing signal is input to a controller 1. The controller 1 generates a phase control signal synchronously with the rising time point of the signal. A period measuring unit 10 measures once 1/2 period immediately after a power switch SW is closed. The controller 1 is programmed to form a phase control signal by interrupting after the time measured by the unit 10 is elapsed from the generation of the phase control signal with the synchronizing signal as a phase reference. A phase control signal is delivered to a trigger circuit 2, and a switching circuit 3 is switched.
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Inventors:
HONDA YOSHIYUKI
SHIBUYA HIROSHI
KAI KATSUNORI
SHIBUYA HIROSHI
KAI KATSUNORI
Application Number:
JP2039185A
Publication Date:
August 13, 1986
Filing Date:
February 04, 1985
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02M1/08; (IPC1-7): H02M1/08
Attorney, Agent or Firm:
Masuo Oiwa