KR890012424A - Overcurrent Protection Circuit of Power Equipment - Google Patents

Overcurrent Protection Circuit of Power Equipment Download PDF

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Publication number
KR890012424A
KR890012424A KR1019880000806A KR880000806A KR890012424A KR 890012424 A KR890012424 A KR 890012424A KR 1019880000806 A KR1019880000806 A KR 1019880000806A KR 880000806 A KR880000806 A KR 880000806A KR 890012424 A KR890012424 A KR 890012424A
Authority
KR
South Korea
Prior art keywords
overcurrent protection
circuit
protection circuit
power equipment
pwm control
Prior art date
Application number
KR1019880000806A
Other languages
Korean (ko)
Other versions
KR900007410B1 (en
Inventor
김상균
Original Assignee
서주인
삼성전기 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 서주인, 삼성전기 주식회사 filed Critical 서주인
Priority to KR1019880000806A priority Critical patent/KR900007410B1/en
Publication of KR890012424A publication Critical patent/KR890012424A/en
Application granted granted Critical
Publication of KR900007410B1 publication Critical patent/KR900007410B1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

내용 없음.No content.

Description

전원기기의 과전류보호회로Overcurrent Protection Circuit of Power Equipment

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

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

Claims (1)

PWM 제어 IC(IC1), 스위칭트랜지스터(W1)와 주전력트랜스(T1)등을 포함한 SMPS 회로에 있어서, 상기 PWM 제어 IC(IC1)의 입력과 주전력트랜스(T1)측의 정류된 출력과의 사이에 마련된 과전류보호부(1)와 상기 스위칭트랜지스터(Q1)의 콜렉터, 에미터 사이에의 전류트랜스(T2)를 포함한 퀘환정류회로(2)로 되고, 이 퀘환정류회로(2)의 출력은 과전류보호부(1)의 비교기(IC2)로 인가되며 이는 주전력트랜스(T2)의 정류전원 출력측과의 전압과 비교되어 PWM 제어 IC(IC1)에 가해지는 구성을 특징으로 하는 전원기기의 과전류보호회로.In an SMPS circuit including a PWM control IC (IC 1 ), a switching transistor (W 1 ), a main power transformer (T 1 ), and the like, an input of the PWM control IC (IC 1 ) and a main power transformer (T 1 ) side. And a quaternary rectifier circuit 2 including an overcurrent protection unit 1 provided between the rectified output, a collector of the switching transistor Q 1 , and a current transformer T 2 between the emitters. The output of the circuit 2 is applied to the comparator IC 2 of the overcurrent protection unit 1, which is compared with the voltage of the rectifier power output side of the main power transformer T 2 and applied to the PWM control IC IC 1 . An overcurrent protection circuit of a power supply device characterized by the configuration. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019880000806A 1988-01-30 1988-01-30 Protecting circuit for cover current KR900007410B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880000806A KR900007410B1 (en) 1988-01-30 1988-01-30 Protecting circuit for cover current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880000806A KR900007410B1 (en) 1988-01-30 1988-01-30 Protecting circuit for cover current

Publications (2)

Publication Number Publication Date
KR890012424A true KR890012424A (en) 1989-08-26
KR900007410B1 KR900007410B1 (en) 1990-10-08

Family

ID=19271842

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880000806A KR900007410B1 (en) 1988-01-30 1988-01-30 Protecting circuit for cover current

Country Status (1)

Country Link
KR (1) KR900007410B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100703166B1 (en) 2005-08-29 2007-04-06 삼성전자주식회사 Power supplying apparatus and power supplying method

Also Published As

Publication number Publication date
KR900007410B1 (en) 1990-10-08

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