JPS58169353U

JPS58169353U - Control circuit of proportional control valve

Info

Publication number: JPS58169353U
Application number: JP6630182U
Authority: JP
Inventors: 渡辺　光靖
Original assignee: 株式会社日立ホームテック
Priority date: 1982-05-07
Filing date: 1982-05-07
Publication date: 1983-11-11

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案に使用する比例制−弁の特性図、第２図
は本考案における比例制御弁の制御回路の一実施例図、
第３図は本考案による制御回路における各部の電圧波形
図、第４図は同設定温度と実際温度の差′による燃料供
給量の関係図、第５図ａ。、ｂ、ｃは同設定温度を急激に変化させたときの制御回
路のＶＤ（７）電圧変化、燃料供給量の変化、実際の温
度の変化を示した図である。１・・・温度設定回路、２・・・差動増幅回路、３・・
・三角波発生回路、４・・・比例制御弁駆動回路、１９
・・・温度検知回路、３，３・・・比較器、３７・・・
比例制御弁、３８・・・遅延要素。Fig. 1 is a characteristic diagram of the proportional control valve used in the present invention, Fig. 2 is an example diagram of the control circuit of the proportional control valve in the present invention,
FIG. 3 is a diagram of voltage waveforms at various parts of the control circuit according to the present invention, FIG. 4 is a diagram of the relationship between the amount of fuel supplied depending on the difference between the set temperature and the actual temperature, and FIG. 5a. , b, and c are diagrams showing changes in VD(7) voltage of the control circuit, changes in fuel supply amount, and changes in actual temperature when the set temperature is suddenly changed. 1... Temperature setting circuit, 2... Differential amplifier circuit, 3...
・Triangular wave generation circuit, 4... Proportional control valve drive circuit, 19
...Temperature detection circuit, 3,3...Comparator, 37...
Proportional control valve, 38...delay element.

Claims

[Scope of utility model registration request]

In a control circuit for a proportional control valve that uses a pulse drive method and continuously controls the fuel supply amount according to the pulse operation rate, a temperature setting circuit 1 that converts a set temperature to voltage to which a delay element 38 is connected and an actual temperature. The surface output from the temperature detection circuit 19 that converts the voltage into a voltage is input to the differential amplifier circuit 2, and the output is combined with the output from the triangular wave generation circuit 3, which generates a waveform of voltage rise and voltage drop within a certain voltage range at a certain period. A control circuit for a proportional control valve, which is configured by a circuit that inputs an output to a comparator 33 and drives a proportional control valve 37 using the output.