JPH0244837U

JPH0244837U -

Info

Publication number: JPH0244837U
Application number: JP12356088U
Authority: JP
Priority date: 1988-09-21
Filing date: 1988-09-21
Publication date: 1990-03-28
Anticipated expiration: 2003-09-21
Also published as: JPH073799Y2

Description

[Brief explanation of the drawing]

第１図は本考案の電力制御装置の原理ブロツク
図である。第２図は本考案による電力制御装置の
一実施例を示す全体の回路図である。図において、１０は制御素子、１１は負荷、１
２は電圧又は電流検出手段、１３はサンプリング
信号発生手段、１４は自乗手段、１５は平均手段
、１６は位相制御手段。 FIG. 1 is a block diagram of the principle of the power control device of the present invention. FIG. 2 is an overall circuit diagram showing an embodiment of the power control device according to the present invention. In the figure, 10 is a control element, 11 is a load, 1
2 is voltage or current detection means, 13 is sampling signal generation means, 14 is square means, 15 is averaging means, and 16 is phase control means.

Claims

[Claims for Utility Model Registration] A control element 10 that supplies AC power to a load 11; a detection means 12 that detects a voltage or current whose phase is controlled by the control element 10; and a voltage detected by the detection means 12. or a sampling signal generating means 13 that sends out a sampling signal with a duty ratio determined according to the current, and sampling the voltage or current output from the detecting means 12 using the sampling signal output from the sampling signal generating means 13. , a squaring means 14 that squares the sample value; an averaging means 15 that averages the squared signal from the squaring means 14, converts it into an effective value, and sends out a correction amount; and generates a trigger signal synchronized with the frequency of the AC power supply. At the same time, the phase of the trigger signal is calculated by the averaging means 1.
5. A power control device comprising: a phase control means 16 that controls the control element 10 by changing the amount of correction from the phase control means 16 according to the correction amount from the phase control means 16;