JPH0321986U

JPH0321986U -

Info

Publication number: JPH0321986U
Application number: JP8013389U
Authority: JP
Priority date: 1989-07-10
Filing date: 1989-07-10
Publication date: 1991-03-06

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す回路図、第２
図は第１図の装置の波形図、第３図は制御回路
，の動作を説明する波形図である。第４図はド
ロツパ方式、第５図はマグアンプ方式、第６図は
ＤＣ／ＤＣコンバータ方式を説明する要部回路図
である。Ｔ……パワートランス、Ｑ３……スイツチング
素子、Ｕ１，Ｕ２……誤差増幅器。 Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
This figure is a waveform diagram of the apparatus shown in FIG. 1, and FIG. 3 is a waveform diagram explaining the operation of the control circuit. FIG. 4 is a circuit diagram of a main part explaining a dropper system, FIG. 5 is a mag-amp system, and FIG. 6 is a circuit diagram of a main part explaining a DC/DC converter system. T...Power transformer, Q3...Switching element, U1, U2...Error amplifier.

Claims

[Claims for Utility Model Registration] A power transformer having a primary winding n1 to which a DC voltage is applied, a first switching element that turns on and off the DC voltage of this primary winding, and a first secondary winding of this power transformer. a main output circuit that rectifies and smoothes the switching signal induced in the winding n3; a first error detection circuit that compares the output voltage Vout1 of this main output circuit with a predetermined reference voltage Vref1; a main control circuit that sends a control signal to the first switching element in a direction that reduces the output error signal; a rectifier that rectifies the switching signal induced in the second secondary winding n2 of the power transformer; A secondary output circuit includes a second switching element that turns on and off this rectified signal, and a circuit that smoothes this switched signal, and compares the output voltage Vcut2 of this secondary output circuit with a predetermined reference voltage Vret2. a second error detection circuit that sends a control signal to the second switching element in a direction in which the error signal output from this error detection circuit becomes smaller; A multi-output switching regulator comprising: synchronization means for synchronizing the on/off timing of the first and second switching signals with respect to the control signal.