KR890007784U - Lead-acid battery over-discharge prevention circuit for card-type public phones - Google Patents

Lead-acid battery over-discharge prevention circuit for card-type public phones

Info

Publication number
KR890007784U
KR890007784U KR2019870016848U KR870016848U KR890007784U KR 890007784 U KR890007784 U KR 890007784U KR 2019870016848 U KR2019870016848 U KR 2019870016848U KR 870016848 U KR870016848 U KR 870016848U KR 890007784 U KR890007784 U KR 890007784U
Authority
KR
South Korea
Prior art keywords
card
lead
acid battery
prevention circuit
discharge prevention
Prior art date
Application number
KR2019870016848U
Other languages
Korean (ko)
Other versions
KR910002297Y1 (en
Inventor
이영완
이무희
Original Assignee
국제전자공업 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 국제전자공업 주식회사 filed Critical 국제전자공업 주식회사
Priority to KR2019870016848U priority Critical patent/KR910002297Y1/en
Publication of KR890007784U publication Critical patent/KR890007784U/en
Application granted granted Critical
Publication of KR910002297Y1 publication Critical patent/KR910002297Y1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
KR2019870016848U 1987-09-30 1987-09-30 Protective circuit at discharge condenser for telephone card KR910002297Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019870016848U KR910002297Y1 (en) 1987-09-30 1987-09-30 Protective circuit at discharge condenser for telephone card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019870016848U KR910002297Y1 (en) 1987-09-30 1987-09-30 Protective circuit at discharge condenser for telephone card

Publications (2)

Publication Number Publication Date
KR890007784U true KR890007784U (en) 1989-05-17
KR910002297Y1 KR910002297Y1 (en) 1991-04-06

Family

ID=19268393

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019870016848U KR910002297Y1 (en) 1987-09-30 1987-09-30 Protective circuit at discharge condenser for telephone card

Country Status (1)

Country Link
KR (1) KR910002297Y1 (en)

Also Published As

Publication number Publication date
KR910002297Y1 (en) 1991-04-06

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19940418

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee