KR870001303U - Output (POWER) transistor protection circuit - Google Patents

Output (POWER) transistor protection circuit

Info

Publication number: KR870001303U
Authority: KR; South Korea
Prior art keywords: output; power; protection circuit; transistor protection; transistor
Prior art date: 1985-06-25
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.): Granted

Application number

KR2019850007679U

Other languages

Korean (ko)

Other versions

KR880000514Y1 (en

Inventor

신현준

Original Assignee

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.)

1985-06-25

Filing date

1985-06-25

Publication date

1987-02-20

1985-06-25 Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사

1985-06-25 Priority to KR2019850007679U priority Critical patent/KR880000514Y1/en

1987-02-20 Publication of KR870001303U publication Critical patent/KR870001303U/en

1988-03-12 Application granted granted Critical

1988-03-12 Publication of KR880000514Y1 publication Critical patent/KR880000514Y1/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/26—Push-pull amplifiers; Phase-splitters therefor
- H03F3/265—Push-pull amplifiers; Phase-splitters therefor with field-effect transistors only
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/471—Indexing scheme relating to amplifiers the voltage being sensed

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)

KR2019850007679U 1985-06-25 1985-06-25 Output transistor protection circuit Expired KR880000514Y1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
KR2019850007679U KR880000514Y1 (en)	1985-06-25	1985-06-25	Output transistor protection circuit

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
KR2019850007679U KR880000514Y1 (en)	1985-06-25	1985-06-25	Output transistor protection circuit

Publications (2)

Publication Number	Publication Date
KR870001303U true KR870001303U (en)	1987-02-20
KR880000514Y1 KR880000514Y1 (en)	1988-03-12

Family

ID=19243220

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
KR2019850007679U Expired KR880000514Y1 (en)	1985-06-25	1985-06-25	Output transistor protection circuit

Country Status (1)

Country	Link
KR (1)	KR880000514Y1 (en)

1985
- 1985-06-25 KR KR2019850007679U patent/KR880000514Y1/en not_active Expired

Also Published As

Publication number	Publication date
KR880000514Y1 (en)	1988-03-12

Publication	Publication Date	Title
DK592486A (en)	1987-06-14	FAST-ACTING FIELD POWER TRANSISTOR CONTROL CIRCUIT
KR870002933U (en)	1987-03-19	Circuit breaker
KR870001226U (en)	1987-02-20	Circuit breaker
IT1188434B (en)	1988-01-14	CIRCUIT PROVISION
KR870001303U (en)	1987-02-20	Output (POWER) transistor protection circuit
IT1186131B (en)	1987-11-18	POWER CIRCUIT FOR TELEPHONE DEVICES
KR880013836U (en)	1988-08-30	Power transistor protection circuit
KR870018380U (en)	1987-12-23	Power transistor protection circuit
KR890007813U (en)	1989-05-17	Power transistor protection circuit
KR900009159U (en)	1990-05-04	Power protection circuit
KR880010861U (en)	1988-07-28	Power protection circuit
KR880010777U (en)	1988-07-28	Power protection circuit
KR870004379U (en)	1987-07-31	Power off delay circuit
KR860006769U (en)	1986-06-25	2Overvoltage protection device for power circuit
KR880001389U (en)	1988-03-15	Power line protection circuit
KR850009090U (en)	1985-11-25	Mycom device power circuit
KR860012494U (en)	1986-10-10	Power circuit
KR910013183U (en)	1991-07-30	Output transistor protection circuit
KR870001279U (en)	1987-02-20	Stabilized power circuit
KR890020119U (en)	1989-10-05	Protection circuit of multi-output power circuit
KR870001223U (en)	1987-02-20	Circuit breaker
KR910013210U (en)	1991-07-30	Power transistor protection circuit
GB8400755D0 (en)	1984-02-15	Power transistor protection circuit
KR910019065U (en)	1991-11-29	Voltage protection circuit at power output
KR870005910U (en)	1987-04-25	Short circuit protection circuit

Legal Events

Date	Code	Title	Description
1985-06-25	A201	Request for examination
1985-06-25	R17-X000	Change to representative recorded	St.27 status event code: A-3-3-R10-R17-oth-X000
1985-06-25	UA0108	Application for utility model registration	St.27 status event code: A-0-1-A10-A12-nap-UA0108
1985-06-25	UA0201	Request for examination	St.27 status event code: A-1-2-D10-D11-exm-UA0201
1987-02-20	UG1501	Laying open of application	St.27 status event code: A-1-1-Q10-Q12-nap-UG1501
1987-09-23	E902	Notification of reason for refusal
1987-09-23	UE0902	Notice of grounds for rejection	St.27 status event code: A-1-2-D10-D21-exm-UE0902
1987-10-23	P11-X000	Amendment of application requested	St.27 status event code: A-2-2-P10-P11-nap-X000
1987-10-23	P13-X000	Application amended	St.27 status event code: A-2-2-P10-P13-nap-X000
1988-03-12	UG1604	Publication of application	St.27 status event code: A-2-2-Q10-Q13-nap-UG1604
1988-05-21	E701	Decision to grant or registration of patent right
1988-05-21	UE0701	Decision of registration	St.27 status event code: A-1-2-D10-D22-exm-UE0701
1988-05-30	REGI	Registration of establishment
1988-05-30	UR0701	Registration of establishment	St.27 status event code: A-2-4-F10-F11-exm-UR0701
1988-05-30	UR1002	Payment of registration fee	St.27 status event code: A-2-2-U10-U11-oth-UR1002 Fee payment year number: 1
1990-12-28	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 4
1991-12-27	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 5
1993-01-06	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 6
1994-02-28	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 7
1995-02-28	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 8
1996-02-29	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 9
1996-12-30	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 10
1997-08-26	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 11
1997-08-29	FPAY	Annual fee payment	Payment date: 19970829 Year of fee payment: 12
1997-08-29	UR1001	Payment of annual fee	St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 12
1999-01-08	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
1999-02-03	UN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-UN2301 St.27 status event code: A-5-5-R10-R11-asn-UN2301
1999-09-18	UN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-UN2301 St.27 status event code: A-5-5-R10-R11-asn-UN2301
2000-03-13	LAPS	Lapse due to unpaid annual fee
2000-03-13	UC1903	Unpaid annual fee	St.27 status event code: A-4-4-U10-U13-oth-UC1903 Not in force date: 20000313 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE
2000-08-09	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2001-01-08	UC1903	Unpaid annual fee	St.27 status event code: N-4-6-H10-H13-oth-UC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20000313
2001-07-01	R17-X000	Change to representative recorded	St.27 status event code: A-5-5-R10-R17-oth-X000
2002-04-30	UN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-UN2301 St.27 status event code: A-5-5-R10-R11-asn-UN2301
2002-10-11	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2003-01-07	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2003-12-02	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2005-07-15	UN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-UN2301 St.27 status event code: A-5-5-R10-R11-asn-UN2301
2005-08-02	UN2301	Change of applicant	St.27 status event code: A-5-5-R10-R13-asn-UN2301 St.27 status event code: A-5-5-R10-R11-asn-UN2301
2012-06-21	R18-X000	Changes to party contact information recorded	St.27 status event code: A-5-5-R10-R18-oth-X000
2018-12-22	P22-X000	Classification modified	St.27 status event code: A-4-4-P10-P22-nap-X000