JPS63159413U

JPS63159413U -

Info

Publication number: JPS63159413U
Application number: JP5209487U
Authority: JP
Priority date: 1987-04-08
Filing date: 1987-04-08
Publication date: 1988-10-19

Description

[Brief explanation of the drawing]

第１図は従来の電圧改善装置の回路例図、第２
図は本考案の一実施例ブロツク回路路図、第３図
は動作説明用の波形図である。１……交流電圧、２……整流回路、３……直流
フイルタ、４……インバータ回路、５……誤差電
圧検出回路、６……制御回路、７……交流フイル
タ、８……負荷、９……充電用整流回路、１０…
…蓄電池、１１……電圧低下検出器、１２……サ
イリスタスイツチ、１３……交流電源接続端子、
１４……昇圧用トランス、１４ａ……１次巻線、
１４ｂ……タツプ付２次巻線、１５……交流フイ
ルタ、１６……負荷接続端子、１７……タツプ切
替用電子的スイツチング回路、１８……制御回路
、１９……積分電圧検出回路、２０……誤差電圧
検出回路、２１……基準電圧、２２……タツプ切
替信号発生回路、２３……素子Ｓ_０のオフ検出回
路、２４……サージアブソーバ。 Figure 1 is an example circuit diagram of a conventional voltage improvement device;
The figure is a block circuit diagram of one embodiment of the present invention, and FIG. 3 is a waveform diagram for explaining the operation. DESCRIPTION OF SYMBOLS 1... AC voltage, 2... Rectifier circuit, 3... DC filter, 4... Inverter circuit, 5... Error voltage detection circuit, 6... Control circuit, 7... AC filter, 8... Load, 9 ...Charging rectifier circuit, 10...
... Storage battery, 11 ... Voltage drop detector, 12 ... Thyristor switch, 13 ... AC power supply connection terminal,
14...Step-up transformer, 14a...Primary winding,
14b... Secondary winding with tap, 15... AC filter, 16... Load connection terminal, 17... Electronic switching circuit for tap switching, 18... Control circuit, 19... Integral voltage detection circuit, 20... ...error voltage detection circuit, 21...reference voltage, 22...tap switching signal generation circuit, 23...off detection circuit for element _S0 , 24...surge absorber.

Claims

[Scope of utility model registration request]

For boosting, the primary winding is connected between the connection terminals of the AC power supply, and has a rated voltage supply winding with a rated voltage acquisition tap, and a secondary winding consisting of a compensation winding with the required plurality of voltage compensation taps. A transformer, an electronic switching circuit that switches and connects the rated voltage acquisition tap and the plurality of voltage compensation taps to the load connection terminals, and an integral voltage detection circuit that repeatedly integrates the AC power supply voltage over 1/n cycle; Comparing the output of the circuit with the reference voltage to detect a voltage drop, turning off the tap circuit for obtaining the rated voltage of the step-up transformer, and simultaneously detecting the width of the voltage drop,
An instantaneous voltage drop improvement device comprising a switching signal generation circuit for the electronic switching circuit that connects a voltage compensation tap to a load connection terminal to obtain an output voltage corresponding to the width of the drop.