JPH0436616U

JPH0436616U -

Info

Publication number: JPH0436616U
Application number: JP7616290U
Authority: JP
Priority date: 1990-07-19
Filing date: 1990-07-19
Publication date: 1992-03-27

Description

[Brief explanation of drawings]

第１図乃至第４図はこの考案に係る位相補正回
路付き電源装置の実施例を示し、第１図は構成回
路図、第２図は出力側を交流等価回路に書改めた
回路図、第３図Ａは出力端子に生じる波形図、第
３図Ｂは負荷接続線に入つたインダクタンス成分
により位相遅れになつて電圧検出端子に生じる波
形図、第３図Ｃは可変コンデンサによりインダク
タンス成分をキヤンセルした電圧検出端子に生じ
る波形図、第４図は位相比較器を使用した応用例
の回路図である。第５図は従来例の回路図である
。主な符号の説明、１……電圧制御部、２……誤
差増幅器、３……基準電圧源、４……＋側可変コ
ンデンサ、５……＋側帰還抵抗器、６……−側帰
還抵抗器、７……−側可変コンデンサ、８……＋
側コンデンサ制御回路、９……＋側電圧比較器、
１０……−側コンデンサ制御回路、１１……−側
電圧比較器、１２……＋側出力端子、１３……＋
側電圧検出端子、１４……−側電圧検出端子、１
５……−側出力端子、１６……＋側出力線、１７
……＋側電圧検出線、１８……−側電圧検出線、
１９……−側出力線、２０……負荷、２１……＋
側出力線のインダクタンス、２２……＋側電圧検
出線のインダクタンス、２３……−側電圧検出線
のインダクタンス、２４……−側出力線のインダ
クタンス。 1 to 4 show an embodiment of the power supply device with a phase correction circuit according to this invention, in which FIG. 1 is a configuration circuit diagram, FIG. 2 is a circuit diagram in which the output side is rewritten as an AC equivalent circuit, and FIG. Figure 3A is a waveform diagram generated at the output terminal, Figure 3B is a waveform diagram that is delayed in phase due to the inductance component entering the load connection line and generated at the voltage detection terminal, and Figure 3C is a diagram of the waveform generated at the voltage detection terminal by a variable capacitor. FIG. 4 is a circuit diagram of an application example using a phase comparator. FIG. 5 is a circuit diagram of a conventional example. Explanation of main symbols, 1...Voltage control section, 2...Error amplifier, 3...Reference voltage source, 4...+ side variable capacitor, 5...+ side feedback resistor, 6...- side feedback resistor 7...- side variable capacitor, 8...+
side capacitor control circuit, 9...+ side voltage comparator,
10...- side capacitor control circuit, 11...- side voltage comparator, 12...+ side output terminal, 13...+
Side voltage detection terminal, 14...-side voltage detection terminal, 1
5...- side output terminal, 16...+ side output line, 17
...+ side voltage detection line, 18...- side voltage detection line,
19...- side output line, 20...load, 21...+
Inductance of the side output line, 22... Inductance of the + side voltage detection line, 23... Inductance of the - side voltage detection line, 24... Inductance of the - side output line.

Claims

[Claims for Utility Model Registration] Two feedback resistors on the positive side and negative side that connect and detect the voltage supplied to the load from the output terminal to the voltage detection terminal of remote sensing, and these two feedback resistors. In a remote sensing operation power supply device comprising an error amplifier that inputs a divided voltage and a reference voltage and outputs an error voltage, and a voltage control circuit that controls a voltage to a load using the error voltage, the two feedbacks described above are provided. A variable capacitor inserted between the voltage detection terminal for remote sensing connected to the resistor and the output terminal, a capacitor control circuit that controls this variable capacitor, and the voltage between the output terminal and the voltage detection terminal are compared and the voltage is calculated. 1. A power supply device with a phase correction circuit, comprising a voltage comparator that outputs a phase difference to control a capacitor control circuit, and is configured to automatically correct a voltage phase that changes due to load fluctuations.