JPS6441565A - Power supply circuit for terminal equipment - Google Patents

Power supply circuit for terminal equipment

Info

Publication number
JPS6441565A
JPS6441565A JP62197744A JP19774487A JPS6441565A JP S6441565 A JPS6441565 A JP S6441565A JP 62197744 A JP62197744 A JP 62197744A JP 19774487 A JP19774487 A JP 19774487A JP S6441565 A JPS6441565 A JP S6441565A
Authority
JP
Japan
Prior art keywords
circuit
chargeable battery
terminal equipment
equipment
power supply
Prior art date
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.)
Pending
Application number
JP62197744A
Other languages
Japanese (ja)
Inventor
Koji Nishimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62197744A priority Critical patent/JPS6441565A/en
Publication of JPS6441565A publication Critical patent/JPS6441565A/en
Pending legal-status Critical Current

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  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To make a feeding current from a main equipment small and to extend the feeding distance by providing a chargeable battery to a power supply circuit of a terminal equipment. CONSTITUTION:DC-DC converter 1 is energized from a main body equipment 15 through a connection cable 9 and supplies power to the chargeable battery 2 via a reverse-current prevention circuit 10 comprising a diode or the like. The chargeable battery 2 energizes a terminal control circuit 4 of a terminal equipment, a liquid crystal display circuit 5, a light emitting diode 6, a buzzer circuit 7 and a speaker circuit 8 or the like. Since the light emitting diode 6, the buzzer circuit 7 and the speaker circuit 8 are used in response to traffic, when the chargeable battery 2 has proper capacity, since the battery is charged at the time of low traffic, the capacity of the DC-DC converter 1 is reduced to suppress the feeding current from the main equipment 15 to a small value.
JP62197744A 1987-08-07 1987-08-07 Power supply circuit for terminal equipment Pending JPS6441565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62197744A JPS6441565A (en) 1987-08-07 1987-08-07 Power supply circuit for terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62197744A JPS6441565A (en) 1987-08-07 1987-08-07 Power supply circuit for terminal equipment

Publications (1)

Publication Number Publication Date
JPS6441565A true JPS6441565A (en) 1989-02-13

Family

ID=16379620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62197744A Pending JPS6441565A (en) 1987-08-07 1987-08-07 Power supply circuit for terminal equipment

Country Status (1)

Country Link
JP (1) JPS6441565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447587A2 (en) 2010-10-26 2012-05-02 Toyo Engineering Corporation Piping system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2447587A2 (en) 2010-10-26 2012-05-02 Toyo Engineering Corporation Piping system

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