JPS58193782U

JPS58193782U - three phase rectifier circuit

Info

Publication number: JPS58193782U
Application number: JP8689482U
Authority: JP
Inventors: 俊明青木
Original assignee: 菊水電子工業株式会社
Priority date: 1982-06-11
Filing date: 1982-06-11
Publication date: 1983-12-23
Also published as: JPH0145271Y2

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図は従来の位相制御整流回路の一例を示す図、第２
図は第１図に示す回路のサイリスタの導通角と出力電圧
との関係を示す図、第３図は本考案の一実施例を示す回
路図、第４図は上記実施例　　　−のサイリスタの導通
角と出力電圧との関係を示す図である。ｐｓ・・・交流電源、Ｔ・・・電源トランス、ｎ□・・
・−次巻線、ｎ２・・・二次巻線、ＣＲ１・・・第１の
サイリスタ・、ＣＲ，・・・第２のサイリスタ、Ｄ・・
・ダイオード、Ｌ・・・チョーク、Ｃ・・・平滑コンデ
ンサ、Ｐ、Ｎ・・・出力端子。第３図第４図Figure 1 shows an example of a conventional phase control rectifier circuit, Figure 2 shows an example of a conventional phase control rectifier circuit.
The figure shows the relationship between the conduction angle of the thyristor and the output voltage in the circuit shown in Fig. 1, Fig. 3 is a circuit diagram showing one embodiment of the present invention, and Fig. 4 shows the conduction of the thyristor of the above embodiment -. FIG. 3 is a diagram showing the relationship between angle and output voltage. ps...AC power supply, T...power transformer, n□...
-Secondary winding, n2...Secondary winding, CR1...First thyristor, CR,...Second thyristor, D...
・Diode, L...Choke, C...Smoothing capacitor, P, N...Output terminal. Figure 3 Figure 4

Claims

[Scope of utility model registration request]

A power transformer that supplies AC power to the primary winding from an AC power supply, derives a midpoint touch from the midpoint of the secondary winding, and further derives low voltage outputs from between this midpoint tap and both ends of the winding. , a first thyristor inserted between both ends of the secondary winding of the power transformer and one output terminal, and a first thyristor inserted between the low voltage output and the output terminal of the power transformer. 2, the other output terminal connected to the center tap of the power transformer, and a choke input smoothing circuit inserted between the rectified output of each of the thyristors and each of the output terminals, and the desired output. Depending on the voltage, the conduction angle of the second cylindrical IJ star changes from O to 2/
During 3r, only the second thyristor is fired, and the conduction angle of the second thyristor is 213? Between r and π, the conduction angle of the first thyristor is ignited between O and 1/3τ according to this conduction angle, and further, when the conduction angle of the first thyristor is between 1/3τ and the second and a gate control circuit for controlling the conduction angle of the thyristor to τ゛.