KR930011388A - SMPS Current Loss Prevention Device - Google Patents

SMPS Current Loss Prevention Device Download PDF

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Publication number
KR930011388A
KR930011388A KR1019910021259A KR910021259A KR930011388A KR 930011388 A KR930011388 A KR 930011388A KR 1019910021259 A KR1019910021259 A KR 1019910021259A KR 910021259 A KR910021259 A KR 910021259A KR 930011388 A KR930011388 A KR 930011388A
Authority
KR
South Korea
Prior art keywords
pwm driver
switching
smps
current loss
stage
Prior art date
Application number
KR1019910021259A
Other languages
Korean (ko)
Inventor
이규영
Original Assignee
정용문
삼성전자 주식회사
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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910021259A priority Critical patent/KR930011388A/en
Publication of KR930011388A publication Critical patent/KR930011388A/en

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Abstract

본 발명은 SMPS에 관한 것으로, 특히 PWM IC를 사용하는 SMPS에서 초기 스타팅후 구동회로를 차단함으로써 전류 손실을 극소화시키는 회로에 관한 것이다.The present invention relates to a SMPS, and more particularly to a circuit for minimizing current loss by interrupting the drive circuit after initial start in an SMPS using a PWM IC.

기동저항 Rs와 PWM드라이버(20)의 Vcc단간에 초기에 스위칭 온하는 스위칭수단(Q2)을 설치하고, 상기 기동저항 RS을 통해 상기 PWM 드라이버(20)가 기동되면 상기 PWM드라이버의 VREF단에서 발생하는 신호를 받아 상기 스위칭수단(Q2)을 차단시키는 스위칭 제어수단(50)을 부가함을 특징으로 하는 SMPS의 전류 손실방지 장치.A switching means (Q2) for initially switching on is provided between the starting resistor Rs and the Vcc stage of the PWM driver 20. When the PWM driver 20 is started through the starting resistor RS, the switching means Q2 is applied at the V REF stage of the PWM driver. Apparatus for preventing current loss of the SMPS, characterized in that for adding a switching control means (50) for blocking the switching means (Q2) in response to the generated signal.

Description

SMPS의 전류 손실방지 장치SMPS Current Loss Prevention Device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 회로도.3 is a circuit diagram according to the present invention.

Claims (1)

기동저항(Rs)에 의해 기동되는 PWM드라이버(20)를 포함하는 스위칭 모드 전원공급기에 있어서, 상기 기동저항(Rs)와 PWM드라이버(20)의 Vcc단간에 초기에 스위칭 온하는 스위칭수단(Q2)을 설치하고, 상기 기동저항 Rs을 퉁해 상기 PWM 드라이버(20)가 기동되면 상기 PWM드라이버의 VREF단에서 발생하는 신호를 받아 상기스위칭수단(Q2)을 차단시키는 스위칭 제어수단(50)을 부가함으로서 상기 PWM 드라이버(20)가 초기 이후에는 상기 기동저항(Rs)의 영향을 받지 않도록된 것을 특징으로 하는 SMPS의 전류 손실방지 장치.In the switching mode power supply including the PWM driver 20 started by the starting resistor Rs, the switching means Q2 for initially switching on between the starting resistor Rs and the Vcc stage of the PWM driver 20. By adding a switching control means 50 for interrupting the switching means (Q2) by receiving a signal generated from the V REF stage of the PWM driver when the PWM driver 20 is started through the starting resistance Rs Device for preventing current loss of the SMPS, characterized in that the PWM driver 20 is not affected by the starting resistance (Rs) after the initial stage. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910021259A 1991-11-26 1991-11-26 SMPS Current Loss Prevention Device KR930011388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910021259A KR930011388A (en) 1991-11-26 1991-11-26 SMPS Current Loss Prevention Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910021259A KR930011388A (en) 1991-11-26 1991-11-26 SMPS Current Loss Prevention Device

Publications (1)

Publication Number Publication Date
KR930011388A true KR930011388A (en) 1993-06-24

Family

ID=67356549

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910021259A KR930011388A (en) 1991-11-26 1991-11-26 SMPS Current Loss Prevention Device

Country Status (1)

Country Link
KR (1) KR930011388A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000034312A (en) * 1998-11-28 2000-06-15 전주범 Starting resistor blocking circuit of refrigerator power supply
WO2002100050A1 (en) * 2001-06-01 2002-12-12 Hyung-Sung Jun Auto redialing & call-receivable person notifying device
KR100460436B1 (en) * 2002-03-13 2004-12-13 주식회사 대성정보통신기술 Automatic Calling Equipment for Telephone Subscribers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000034312A (en) * 1998-11-28 2000-06-15 전주범 Starting resistor blocking circuit of refrigerator power supply
WO2002100050A1 (en) * 2001-06-01 2002-12-12 Hyung-Sung Jun Auto redialing & call-receivable person notifying device
KR100460436B1 (en) * 2002-03-13 2004-12-13 주식회사 대성정보통신기술 Automatic Calling Equipment for Telephone Subscribers

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