JPS5633716A - Switching regulator - Google Patents

Switching regulator

Info

Publication number
JPS5633716A
JPS5633716A JP10767679A JP10767679A JPS5633716A JP S5633716 A JPS5633716 A JP S5633716A JP 10767679 A JP10767679 A JP 10767679A JP 10767679 A JP10767679 A JP 10767679A JP S5633716 A JPS5633716 A JP S5633716A
Authority
JP
Japan
Prior art keywords
current
transformer
winding
transistor
decided
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10767679A
Other languages
Japanese (ja)
Inventor
Rihei Hiramatsu
Tokushige Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Densetsu Kiki Kogyo Kk
Original Assignee
Densetsu Kiki Kogyo Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Densetsu Kiki Kogyo Kk filed Critical Densetsu Kiki Kogyo Kk
Priority to JP10767679A priority Critical patent/JPS5633716A/en
Publication of JPS5633716A publication Critical patent/JPS5633716A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To improve the switching characteristics of the switching transistor, by providing a serial circuit of the control transistor and the current transformer between the main transistor and the reactor.
CONSTITUTION: A serial circuit of the control TR10 and the winding M2 of the current transformer 11 is inserted between the base of the main transistor TR5 and the output side of the smoothing reactor 6, and the compound current of the TRS5 and 10 is flowed to the winding M1 connected to the winding M2. The winding ratio M1/M2 is decided by the current amplification factor of the TR5. The absolute value of the number of turns of the M2 is decided so as to withstand sufficiently the upper and lower time areas A and B shown by the oblique lines and so that the saturation may be avoided for the iron core of the current transformer 11. In this constitution, a certain ratio is secured between the pass current IQ and the base current Ib of the TR5. Then the current Ib is extinguished with the turn-off of the TR10, and the current equivalent to the Ib circulates in the form of the diode current Ib1. And the application voltage of the transformer 11 is inverted at this time point tb. Then the transformer 11 works also as a transformer, and the voltage is generated at the winding 3 provided separately to be supplied to the TR10. Thus the breaking characteristics of the TR5 can be enhanced preatly.
COPYRIGHT: (C)1981,JPO&Japio
JP10767679A 1979-08-25 1979-08-25 Switching regulator Pending JPS5633716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10767679A JPS5633716A (en) 1979-08-25 1979-08-25 Switching regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10767679A JPS5633716A (en) 1979-08-25 1979-08-25 Switching regulator

Publications (1)

Publication Number Publication Date
JPS5633716A true JPS5633716A (en) 1981-04-04

Family

ID=14465155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10767679A Pending JPS5633716A (en) 1979-08-25 1979-08-25 Switching regulator

Country Status (1)

Country Link
JP (1) JPS5633716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141294U (en) * 1982-03-19 1983-09-22 ヤマハ株式会社 damper mechanism for piano

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141294U (en) * 1982-03-19 1983-09-22 ヤマハ株式会社 damper mechanism for piano
JPS6323752Y2 (en) * 1982-03-19 1988-06-29

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