JPS54150957A - Transistor-type dc power supply switching circuit - Google Patents

Transistor-type dc power supply switching circuit

Info

Publication number
JPS54150957A
JPS54150957A JP5969278A JP5969278A JPS54150957A JP S54150957 A JPS54150957 A JP S54150957A JP 5969278 A JP5969278 A JP 5969278A JP 5969278 A JP5969278 A JP 5969278A JP S54150957 A JPS54150957 A JP S54150957A
Authority
JP
Japan
Prior art keywords
pnp
type
transistor
power supply
type switching
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
JP5969278A
Other languages
Japanese (ja)
Inventor
Hideki Shiraishi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5969278A priority Critical patent/JPS54150957A/en
Publication of JPS54150957A publication Critical patent/JPS54150957A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors

Landscapes

  • Electronic Switches (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE:To supply the DC power to the load circuit with no loss of the switching element by connecting the collectors of 1st and 2nd PNP-type switching transistors to the load each. CONSTITUTION:Change-over switch 12 with one end earthed is connected to the base of PNP-type switching transistor Tr10 via resistance 11; common DC power source E29 is connected to the emitters of Tr10 and PNP-type switching Tr13; the emitter of PNP-type switching Tr14 whose collector earthed is connected to the base of Tr13; the collector of Tr10 is connected to the base of Tr14; and the load is connected to the collectors of Tr10 and 13 each. As a result, the switching timing can be set freely without any voltage loss.
JP5969278A 1978-05-18 1978-05-18 Transistor-type dc power supply switching circuit Pending JPS54150957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5969278A JPS54150957A (en) 1978-05-18 1978-05-18 Transistor-type dc power supply switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5969278A JPS54150957A (en) 1978-05-18 1978-05-18 Transistor-type dc power supply switching circuit

Publications (1)

Publication Number Publication Date
JPS54150957A true JPS54150957A (en) 1979-11-27

Family

ID=13120510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5969278A Pending JPS54150957A (en) 1978-05-18 1978-05-18 Transistor-type dc power supply switching circuit

Country Status (1)

Country Link
JP (1) JPS54150957A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273022A (en) * 1985-05-28 1986-12-03 Nec Corp Radio transmission and reception equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61273022A (en) * 1985-05-28 1986-12-03 Nec Corp Radio transmission and reception equipment

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