KR930015247A - Backup Power Supply Circuit During Power Off - Google Patents

Backup Power Supply Circuit During Power Off Download PDF

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Publication number
KR930015247A
KR930015247A KR1019910025699A KR910025699A KR930015247A KR 930015247 A KR930015247 A KR 930015247A KR 1019910025699 A KR1019910025699 A KR 1019910025699A KR 910025699 A KR910025699 A KR 910025699A KR 930015247 A KR930015247 A KR 930015247A
Authority
KR
South Korea
Prior art keywords
power
unit
winding
voltage
constant voltage
Prior art date
Application number
KR1019910025699A
Other languages
Korean (ko)
Other versions
KR930011479B1 (en
Inventor
황운규
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019910025699A priority Critical patent/KR930011479B1/en
Publication of KR930015247A publication Critical patent/KR930015247A/en
Application granted granted Critical
Publication of KR930011479B1 publication Critical patent/KR930011479B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

본 발명은 서브 트랜스를 별도로 사용하지 않고 마이콤 및 리모콘 모듈에 백업 전원을 공급하도록 하는 전원 오프시 백업 전원 공급 회로에 관한 것으로, 이러한 본 발명은 전원 오프시에도 스파크 방지용 콘데서(C3)를 통해 미소한 전류가 유입되는 것을 감안하고, 메인 트랜스(T3)의 2차측을 주권선(A)과 부권선(B)으로 분리하여, 전원 오프시에는 상기 미소 전류를 이용해 부권선(B)에서 저전류 고전압을 발생시켜 제2정전압부(50)를 통해 백업 전원을 공급하고, 전원 온시에는 제1정전압부(40)의 출력 전원을 마이콤(1) 및 리모콘 모듈(2)에 공급하며, 전압 상승 방지부(60)에서 제2정전압부(50)의 정류 전압을 바이패스시켜 전원 온시의 상승된 전압을 오프시와 같은 상태로 안정화시키게 된다.The present invention relates to a backup power supply circuit when the power is off to supply backup power to the microcomputer and the remote control module without using a sub-transformer. In consideration of the current flowing in, the secondary side of the main transformer T3 is separated into the main winding A and the sub winding B, and when the power is turned off, the low current high voltage is applied to the sub winding B using the micro current. To generate backup power through the second constant voltage unit 50, and supply power from the first constant voltage unit 40 to the microcomputer 1 and the remote controller module 2 when the power is turned on. At 60, the rectified voltage of the second constant voltage unit 50 is bypassed to stabilize the elevated voltage at the time of power-on on the same state as at the time of OFF.

Description

전원 오프시 백업 전원 공급 회로Backup Power Supply Circuit During Power Off

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 백업 전원 공급 회로도.2 is a backup power supply circuit diagram of the present invention.

Claims (1)

마이콤(1)의 제어에 따라 전원 코드(PC)를 통한 교류 전원을 트랜스(T3)로 전달 및 차단시키는 전원 스위칭부(20)와 2차측이 주권선(A)과 부권선(B)으로 분리되어 전원 오프시 전원 스위칭부(20)로부터의 미소전류를 이용해 부권선(B)에서 저전류 고전압을 유기시키는 트랜스(T3)와, 상기 주권선(A)의 출력전압을 정류시켜 메인전원을 공급하고 전원 온시 마이콤(1) 및 리모콘 모듈(2)에 레귤레이터(REG2)의 출력 전압을 공급하는 제1정전압부(40)와, 상기 부권선(B)의 출력 전압을 정류시켜 레귤레이터(REG3)의 출력 전압을 마이콤(1) 및 리모콘모듈(2)에 백업 전원으로 공급하는 제2정전압부(50)와, 제1정전압부(40)의 정류 전압에 따라 제너 다이오드(ZD1)와 트랜지스터(TR2)가 스위칭되어 전원 온시 상승되는 제2정전압부(50)의 정류전압을 바이패스시키는 전압 상승 방지부(60)를 구비한 것을 특징으로 하는 전원 오프시 백업 전원 공급 회로.According to the control of the microcomputer 1, the power switching unit 20 for transmitting and cutting off the AC power through the power cord PC to the transformer T3 and the secondary side are separated into the main winding A and the sub winding B. To supply the main power by rectifying the output voltage of the main winding A and the transformer T3 which induces a low current high voltage in the sub winding B by using a small current from the power switching unit 20 when the power is turned off. And a first constant voltage unit 40 for supplying the output voltage of the regulator REG2 to the microcomputer 1 and the remote controller module 2 when the power is turned on, and the output voltage of the negative winding B is rectified. The Zener diode ZD1 and the transistor TR2 according to the rectified voltage of the second constant voltage unit 50 and the first constant voltage unit 40 supplying the output voltage to the microcomputer 1 and the remote controller module 2 as backup power. Rise prevention unit 6 for bypassing the rectified voltage of the second constant voltage unit 50, which is switched on when the power is turned on. And a backup power supply circuit at power off. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019910025699A 1991-12-31 1991-12-31 Back-up circuit KR930011479B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910025699A KR930011479B1 (en) 1991-12-31 1991-12-31 Back-up circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910025699A KR930011479B1 (en) 1991-12-31 1991-12-31 Back-up circuit

Publications (2)

Publication Number Publication Date
KR930015247A true KR930015247A (en) 1993-07-24
KR930011479B1 KR930011479B1 (en) 1993-12-08

Family

ID=19327175

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910025699A KR930011479B1 (en) 1991-12-31 1991-12-31 Back-up circuit

Country Status (1)

Country Link
KR (1) KR930011479B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020015465A (en) * 2000-08-22 2002-02-28 김진영 Uninterruptable switching mode power supply
WO2016137469A1 (en) * 2015-02-25 2016-09-01 La-Z-Boy Incorporated Electrostatic discharge protection and method in power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020015465A (en) * 2000-08-22 2002-02-28 김진영 Uninterruptable switching mode power supply
WO2016137469A1 (en) * 2015-02-25 2016-09-01 La-Z-Boy Incorporated Electrostatic discharge protection and method in power supply

Also Published As

Publication number Publication date
KR930011479B1 (en) 1993-12-08

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