JPS5974409U

JPS5974409U - power control device

Info

Publication number: JPS5974409U
Application number: JP16782282U
Authority: JP
Inventors: 正雄山田
Original assignee: 日本電気株式会社
Priority date: 1982-11-05
Filing date: 1982-11-05
Publication date: 1984-05-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の電力制御装置の構成を示すブロック図、
第２図ａ　”−ｅは各々第１図装置の動作を説明するた
めの波形図、第３図は、本考案による実施例を示すブロ
ック図、第４図ａ−１は各々実施例の動作を説明するた
めの波形図であ名。なお図においてζＥ・・・・・・交流入力電源、１・・
・・・・負荷、２・・・・・・サイリスク、３・・・・
・・全波整流回路、４・・・・・・ゼロクロス回路、５
・・・・・・全波整流回路、６・・・・・・積分回路、
７・・・・・・基準電圧発生回路、８・・間比較器、９
・・・・・・ランプ波形発生回路、１０・曲・変成器、
１１・・・・・・変成器、１２・・・・・・発振回路、
１３・・・・・・カウンタ、１４・・・・・・メモリ、
１５・・・・・・タイミング・パルス発生回路、１６・
・・・・・プリセッタブル・ダウン・カウンタ、１７・
・・・・・トリガパルス発生回路、ａ・・・・・・入力
交流電源波形、ｂ・・・・・・入力全波整流波形、Ｃ・
・・・・・ゼロクロス信号、ｄ・・四サイリスタトリガ
信号、ｅ・・・・・・負荷波形、ｆ・・・用発振回路出
力波形、ｇ・・・・・・カウンタ１３制御信号、ｈ・・
・・・・メモリアクセス信号、ｉ・・・・・・カウンタ
１６制御信号、である。FIG. 1 is a block diagram showing the configuration of a conventional power control device.
Figures 2a-e are waveform diagrams for explaining the operation of the apparatus in Figure 1, Figure 3 is a block diagram showing an embodiment of the present invention, and Figure 4a-1 is the operation of the embodiment. Named by a waveform diagram to explain. In the diagram, ζE... AC input power supply, 1...
...Load, 2...Syrisk, 3...
...Full wave rectifier circuit, 4...Zero cross circuit, 5
・・・・・・Full wave rectifier circuit, 6・・・・・・Integrator circuit,
7... Reference voltage generation circuit, 8... Comparator, 9
・・・・・・Ramp waveform generation circuit, 10, curve, transformer,
11...Transformer, 12...Oscillation circuit,
13...Counter, 14...Memory,
15...timing pulse generation circuit, 16.
...Presettable down counter, 17.
...Trigger pulse generation circuit, a...Input AC power supply waveform, b...Input full-wave rectification waveform, C.
...Zero cross signal, d... Four thyristor trigger signal, e... Load waveform, f... Oscillator circuit output waveform, g... Counter 13 control signal, h...・
. . . Memory access signal, i . . . Counter 16 control signal.

Claims

[Scope of utility model registration request]

An AC power supply, a circuit including a thyristor connected in series with a load, a zero cross circuit that generates a pulse at the zero point of the AC power supply, an oscillation circuit whose oscillation frequency changes depending on the voltage value of the AC power supply, and the oscillation circuit. a counter that counts the oscillation frequency of the counter, a memory that uses the count value of the counter as an address input, another counter that uses the output data of the memory as an input value, and a thyristor that fires in response to the output of the counter. a phase control pulse generation circuit that generates a pulse that controls the firing angle of the thyristor according to the oscillation frequency of the oscillation circuit.