JPS5482032A - Transistor oscilation circuit - Google Patents

Transistor oscilation circuit

Info

Publication number
JPS5482032A
JPS5482032A JP15023177A JP15023177A JPS5482032A JP S5482032 A JPS5482032 A JP S5482032A JP 15023177 A JP15023177 A JP 15023177A JP 15023177 A JP15023177 A JP 15023177A JP S5482032 A JPS5482032 A JP S5482032A
Authority
JP
Japan
Prior art keywords
transistor
output voltage
level
resistance element
variable resistance
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
JP15023177A
Other languages
Japanese (ja)
Inventor
Susumu Saito
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
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15023177A priority Critical patent/JPS5482032A/en
Publication of JPS5482032A publication Critical patent/JPS5482032A/en
Pending legal-status Critical Current

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  • Inverter Devices (AREA)

Abstract

PURPOSE: To eliminate a wasteful generation of heat, by means of controlling a base current of the transistor in the oscillating circuit in accordance with a level of the load, to provide an operational condition with its efficiency always near the highest.
CONSTITUTION: If closed a switch 10, a current is supplied to the base of a transistor 1 and 2 through a resistor 11 from a DC power source 9, with an oscillation started. And during the period until a regular output voltage is reached, a variable resistance element 18 is being held at a minimum value by an output signal of voltage detector 17. In a short time, with a regular output voltage given, the variable resistance element 18 will be controlled at an optimum level in accordance with a level of the load. If the load increases, the output voltage slightly goes down, causing its detected signal to lessen the variable resistance element 18, resulting in an increase of the base current for the transistor 1 and 2, and an action will work to return the output voltage to the former level with a stabilization restored to at the optimum value.
COPYRIGHT: (C)1979,JPO&Japio
JP15023177A 1977-12-13 1977-12-13 Transistor oscilation circuit Pending JPS5482032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15023177A JPS5482032A (en) 1977-12-13 1977-12-13 Transistor oscilation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15023177A JPS5482032A (en) 1977-12-13 1977-12-13 Transistor oscilation circuit

Publications (1)

Publication Number Publication Date
JPS5482032A true JPS5482032A (en) 1979-06-29

Family

ID=15492404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15023177A Pending JPS5482032A (en) 1977-12-13 1977-12-13 Transistor oscilation circuit

Country Status (1)

Country Link
JP (1) JPS5482032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839285A (en) * 1981-08-31 1983-03-07 Matsushita Electric Works Ltd Transistor inverter device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839285A (en) * 1981-08-31 1983-03-07 Matsushita Electric Works Ltd Transistor inverter device

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