KR900012465A - Unpaid Phone Answering Power Supply - Google Patents

Unpaid Phone Answering Power Supply Download PDF

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Publication number
KR900012465A
KR900012465A KR1019890000377A KR890000377A KR900012465A KR 900012465 A KR900012465 A KR 900012465A KR 1019890000377 A KR1019890000377 A KR 1019890000377A KR 890000377 A KR890000377 A KR 890000377A KR 900012465 A KR900012465 A KR 900012465A
Authority
KR
South Korea
Prior art keywords
power supply
unpaid
phone answering
answering power
phone
Prior art date
Application number
KR1019890000377A
Other languages
Korean (ko)
Inventor
라영주
Original Assignee
라영주
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 라영주 filed Critical 라영주
Priority to KR1019890000377A priority Critical patent/KR900012465A/en
Publication of KR900012465A publication Critical patent/KR900012465A/en

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  • Devices For Supply Of Signal Current (AREA)

Abstract

내용 없음No content

Description

무급전 전화 응답 전원장치Unpaid Phone Answering Power Supply

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

제1도는 본 무급전전화응답 전원부를 기존전화 선로에 연결한 예시도로, 여기서B는 전화기의 호출 벨(Bell)회로, C3는 벨 회로에 호출신호음만 통과시키기 위한 캐패시턴스, C1은 C3와 같이 호출신호음 통과용 캐패시턴스, R1은 전류제한용 저항 D1는 정류용 다이오드, C2는 정류전원 저장용 캐패시턴스, L1 및 L2는 가입전화 선로를 표시한 것이다.FIG. 1 is an exemplary diagram in which the unpaid telephone answering power unit is connected to an existing telephone line, where B is a call bell circuit of a telephone, C3 is a capacitance for passing only a ring tone to a bell circuit, and C1 is called as C3. The signal transmissive capacitance, R1 is the current limiting resistor D1 is the rectifier diode, C2 is the rectifier power storage capacitance, and L1 and L2 are the subscribing telephone lines.

Claims (1)

전화 선로에 인가되는 전화호출 신호음을 캐패시턴스C1 및 저항 R1을 통해 다이오드 D1에서 정류하여, 직류전압 형태로 C2에 저장하여 타 전기적 응답장치를 구동하기 위한 전원회로.A power supply circuit for rectifying a telephone call signal applied to a telephone line through a capacitance C1 and a resistor R1 at a diode D1, and storing the signal at C2 in a DC voltage form to drive another electrical response device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890000377A 1989-01-16 1989-01-16 Unpaid Phone Answering Power Supply KR900012465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890000377A KR900012465A (en) 1989-01-16 1989-01-16 Unpaid Phone Answering Power Supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890000377A KR900012465A (en) 1989-01-16 1989-01-16 Unpaid Phone Answering Power Supply

Publications (1)

Publication Number Publication Date
KR900012465A true KR900012465A (en) 1990-08-04

Family

ID=68051280

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890000377A KR900012465A (en) 1989-01-16 1989-01-16 Unpaid Phone Answering Power Supply

Country Status (1)

Country Link
KR (1) KR900012465A (en)

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application