JPS58108507U

JPS58108507U - Control circuit of proportional control valve

Info

Publication number: JPS58108507U
Application number: JP560982U
Authority: JP
Inventors: 渡辺　光靖; 修藤崎
Original assignee: 株式会社日立ホームテック
Priority date: 1982-01-18
Filing date: 1982-01-18
Publication date: 1983-07-23

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 the drawing]

第１図は従来のデユーティ制御回路図、第２図ａ、　　
ｂは同人力電圧に応じた各出力パルス波形図、第３図は
本考案の一実施例による比例制御弁のパルスデューティ
と燃料供給量の関係を示した特性図、第４図は同比例制
御弁の制御回路図、爾５図、　は同各部の電圧波形図、
第６図は同設定温度と実際の温度の差による燃料供給量
の関係を示した図である。１・・・温度設定回路、２・・・温度検知回路、３・・
・差動増幅回路、４・・・一定バイアス電圧加算回路、
５・・・のこぎり（三角）波発生回路、６・・・比例制
御弁　−駆動回路、３１・・・比較器、３５・・・比例
制御弁。＼、。゛　　　（０）（ｂ）特開　→Figure 1 is a conventional duty control circuit diagram, Figure 2a,
b is a diagram of each output pulse waveform according to the human power voltage, Fig. 3 is a characteristic diagram showing the relationship between the pulse duty of the proportional control valve and the fuel supply amount according to an embodiment of the present invention, and Fig. 4 is the proportional control valve. Valve control circuit diagram, Figure 5, is the voltage waveform diagram of each part,
FIG. 6 is a diagram showing the relationship between the fuel supply amount and the difference between the set temperature and the actual temperature. 1...Temperature setting circuit, 2...Temperature detection circuit, 3...
・Differential amplifier circuit, 4...constant bias voltage addition circuit,
5... Sawtooth (triangular) wave generation circuit, 6... Proportional control valve - drive circuit, 31... Comparator, 35... Proportional control valve. \,.゛ (0) (b) Unexamined →

Claims

[Scope of utility model registration request]

In the control circuit of the proportional control valve that uses a pulse drive method and continuously controls the fuel supply amount according to the pulse operation rate, there is a temperature setting circuit 1 that converts the set temperature into voltage, and a temperature setting circuit 1 that converts the actual temperature into voltage. The power from the temperature detection circuit 2 is input to the differential amplifier circuit 3, and its output is input to the constant bias voltage addition circuit 4, and the voltage rise and voltage drop are calculated in a constant period and within a constant voltage range. A control circuit for a proportional control valve is constituted by a circuit that inputs the output of, for example, a triangular wave generation circuit 5 that generates a waveform to a comparator 31, and drives a proportional control valve 35 using the output.