JPH01105212U

JPH01105212U -

Info

Publication number: JPH01105212U
Application number: JP20143987U
Authority: JP
Priority date: 1987-12-30
Filing date: 1987-12-30
Publication date: 1989-07-14

Description

[Brief explanation of drawings]

第１図は本考案の１実施例の電圧制御回路のブ
ロツク図、第２図は第１図のパルス幅変換回路の
具体的構成図、第３図は第２図の回路の各部の波
形図、第４図は第１図の電圧設定回路の回路図、
第５図は第１図のスイツチング回路の具体的回路
図、第６図は第１図のスイツチング回路の具体的
回路図である。１……入力端子、２……パルス幅変調回路、３
……スイツチング回路、４……電圧設定回路、５
……ローパスフイルタ、７……出力端子。 Fig. 1 is a block diagram of a voltage control circuit according to an embodiment of the present invention, Fig. 2 is a specific configuration diagram of the pulse width conversion circuit of Fig. 1, and Fig. 3 is a waveform diagram of each part of the circuit of Fig. 2. , FIG. 4 is a circuit diagram of the voltage setting circuit of FIG. 1,
5 is a specific circuit diagram of the switching circuit shown in FIG. 1, and FIG. 6 is a specific circuit diagram of the switching circuit shown in FIG. 1. 1...Input terminal, 2...Pulse width modulation circuit, 3
... Switching circuit, 4 ... Voltage setting circuit, 5
...Low pass filter, 7...Output terminal.

Claims

[Scope of utility model registration request]

An input terminal for inputting a voltage signal to be controlled, a pulse width modulation circuit for converting the voltage signal input to this input terminal into a repetitive pulse signal with a pulse width corresponding to the potential, and an output from this pulse width modulation circuit. a switching circuit that converts the voltage amplitude of the repetitive pulse signal to a predetermined level; a voltage setting circuit that sets the conversion level of the voltage amplitude in the switching circuit; A voltage control circuit consisting of a filter circuit that converts into a voltage signal corresponding to the pulse width.