KR920007306A - Low voltage detection circuit - Google Patents

Low voltage detection circuit Download PDF

Info

Publication number
KR920007306A
KR920007306A KR1019900014630A KR900014630A KR920007306A KR 920007306 A KR920007306 A KR 920007306A KR 1019900014630 A KR1019900014630 A KR 1019900014630A KR 900014630 A KR900014630 A KR 900014630A KR 920007306 A KR920007306 A KR 920007306A
Authority
KR
South Korea
Prior art keywords
transistor
driving
switching unit
feedback means
resistance feedback
Prior art date
Application number
KR1019900014630A
Other languages
Korean (ko)
Inventor
곽장욱
Original Assignee
김광호
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019900014630A priority Critical patent/KR920007306A/en
Publication of KR920007306A publication Critical patent/KR920007306A/en

Links

Landscapes

  • Electronic Switches (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

내용 없음No content

Description

저전압 검출회로Low voltage detection circuit

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

제1도는 이 발명에 따른 저전압 검출회로도,1 is a low voltage detection circuit diagram according to the present invention,

제6도는 이 발명에 따른 저전압 검출회로를 이용한 전화기회로의 블럭도이다.6 is a block diagram of a telephone circuit using the low voltage detection circuit according to the present invention.

Claims (4)

입력전원(VB)의 레벨에 따라 구동하는 스위칭부(10)와, 상기 스위칭부(10)에 연결되어, 상기 스위칭부(10)의 구동에 따라 바이어스를 상이하게 공급하는 저항피드백 수단과, 상기 저항 피드백 수단 및 스위칭부(10)에 연결되어, 상기 스위칭부(10)의 제어에 따라 구동하는 발광부(30)와, 로 구성되는 것을 특징으로 하는 저전압 검출회로.A switching unit 10 driving according to a level of an input power supply VB, resistance feedback means connected to the switching unit 10 to supply a bias differently according to the driving of the switching unit 10, and And a light emitting part (30) connected to the resistance feedback means and the switching part (10) for driving under the control of the switching part (10). 제1항에 있어서, 상기 스위칭부(10)는, 전원(VB)에 연결되는 전압분배용 저항(R1),(R2)과 상기 저항(R1)에 연결되어, 상기 전원(VB)의 공급전위에 따라 구동하는 트랜지스터(Q1)와, 상기 트랜지스터(Q1)에 연결되어, 상기 트랜지스터(Q1)와 역구동하는 트랜지스터(Q2)와, 로 구성된 저전압 검출회로.According to claim 1, The switching unit 10 is connected to the voltage distribution resistor (R1), (R2) and the resistor (R1) connected to the power supply (VB), the supply potential of the power supply (VB) And a transistor (Q1) coupled to the transistor (Q1) for driving in accordance with the transistor (Q1), and driving backward with the transistor (Q1). 제1항에 있어서, 상기 저항 피드백수단은, 상기 스위칭부(10)의 저항(R1)에 연결되어 상기 스위칭부(10)의 구동에 따라 바이어스가 상이한 저항(R3)으로 구성된 저전압 검출회로.The low voltage detection circuit according to claim 1, wherein the resistance feedback means is connected to a resistor (R1) of the switching unit (10) and comprises a resistor (R3) having a different bias according to the driving of the switching unit (10). 제1항에 있어서, 상기 발광부(30)는, 상기 저항 피드백 수단에 연결되어 상기 저항 피드백수단의 바이어스에 따라 구동하는 트랜지스터(Q3)와, 상기 트랜지스터(Q3)에 연결되어 상기 트랜지스터(Q3)와, 역구동하는 SCR(Q4)과, 상기 SCR(Q4)에 연결되어, 상기 SCR(Q4)의 구동시 구동하는 발광다이오드(LED)와, 로 구성된 저전압 검출회로.2. The transistor of claim 1, wherein the light emitting part 30 is connected to the resistance feedback means and drives according to a bias of the resistance feedback means, and is connected to the transistor Q3. And a light emitting diode (LED) connected to the back-driven SCR (Q4), the SCR (Q4), and driven when the SCR (Q4) is driven. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900014630A 1990-09-15 1990-09-15 Low voltage detection circuit KR920007306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900014630A KR920007306A (en) 1990-09-15 1990-09-15 Low voltage detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900014630A KR920007306A (en) 1990-09-15 1990-09-15 Low voltage detection circuit

Publications (1)

Publication Number Publication Date
KR920007306A true KR920007306A (en) 1992-04-28

Family

ID=67542804

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900014630A KR920007306A (en) 1990-09-15 1990-09-15 Low voltage detection circuit

Country Status (1)

Country Link
KR (1) KR920007306A (en)

Similar Documents

Publication Publication Date Title
KR960015972A (en) LED driving circuit
KR950701469A (en) DRIVE CIRCUITRY FOR A MOS FIELD EFFECT TRANSTSTOR
KR910010850A (en) Current detection circuit in MOS type power transistor
KR910020445A (en) Over Current Detection Device
KR920007306A (en) Low voltage detection circuit
DE50102479D1 (en) CONTROL OF LIGHT-EMITTING DIODES (LED'S)
KR910005574A (en) Constant voltage circuit
KR910014838A (en) Infrared contact input device and light emitter activation circuit
IT1275650B1 (en) CONSTANT CURRENT SOURCE
KR900017295A (en) Optical trigger switching circuit
KR880014507A (en) LED Drive Integrated Circuit
KR850003095A (en) Infrared transmitter circuit and remote key input device
SU1251315A1 (en) Optronic relay
DE59608231D1 (en) Circuit arrangement for the power supply of a digital arithmetic circuit
KR910006818A (en) Overvoltage Protection Circuit
KR980006868A (en) Gate driving circuit
KR920006430Y1 (en) Indicating circuit for stand-by power source
KR970029289A (en) LED driving circuit using PECL signal
KR880009470A (en) Switching power
KR920020818A (en) Power output variable circuit
KR920001854A (en) Output circuit device
KR890013867A (en) Power Square Wave Generation Circuit
JPH01208016A (en) Light emitting element driving circuit
KR950022035A (en) Ring Oscillator Using Reference Voltage
KR960019047A (en) Indicator brightness control

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
WITB Written withdrawal of application