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JPS54152139A - Multi-voltage power source - Google Patents

Multi-voltage power source

Info

Publication number
JPS54152139A
JPS54152139A JP6021478A JP6021478A JPS54152139A JP S54152139 A JPS54152139 A JP S54152139A JP 6021478 A JP6021478 A JP 6021478A JP 6021478 A JP6021478 A JP 6021478A JP S54152139 A JPS54152139 A JP S54152139A
Authority
JP
Japan
Prior art keywords
voltage
output voltage
output
circuit
control element
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
JP6021478A
Other languages
Japanese (ja)
Inventor
Osamu Isaka
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6021478A priority Critical patent/JPS54152139A/en
Publication of JPS54152139A publication Critical patent/JPS54152139A/en
Pending legal-status Critical Current

Links

Landscapes

  • Direct Current Feeding And Distribution (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To obtain multivoltage according to required voltage by one circuit by changing the electrification state of series control element according to required voltage.
CONSTITUTION: The microprocessor 26 by which to stabilize output voltage to required voltage by changing the electrification state of the series control element 12 consisting of the transistors Q3 and Q4 according to output voltage and required voltage and the voltage distributing circuit 15 by which to distribute output voltage to each output terminal according to each required voltage are provided. When the load 28 requires the μP26 for the output voltage V1, the μP sends out the signals b1 to the circuit 15 and then the thyristor S1 is electrified by the level converter LT1 and voltage from the output terminal 19 is applied to load. The output voltage is detected by the voltage detection circuit 16 and then supplied to the μP26 through the AD converter 22 and the multiplexer 25. At the μP26, the output voltage is compared with a reference voltage value memorized there and on the basis of the result, the electrification time of the series control element is controlled.
COPYRIGHT: (C)1979,JPO&Japio
JP6021478A 1978-05-20 1978-05-20 Multi-voltage power source Pending JPS54152139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6021478A JPS54152139A (en) 1978-05-20 1978-05-20 Multi-voltage power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6021478A JPS54152139A (en) 1978-05-20 1978-05-20 Multi-voltage power source

Publications (1)

Publication Number Publication Date
JPS54152139A true JPS54152139A (en) 1979-11-30

Family

ID=13135675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6021478A Pending JPS54152139A (en) 1978-05-20 1978-05-20 Multi-voltage power source

Country Status (1)

Country Link
JP (1) JPS54152139A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633651A (en) * 1986-06-24 1988-01-08 Ricoh Co Ltd Controller for switching power source
JP2006109695A (en) * 2004-10-08 2006-04-20 Linear Technol Corp Circuit and method for flexible current splitting in monolithic switching regulators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633651A (en) * 1986-06-24 1988-01-08 Ricoh Co Ltd Controller for switching power source
JP2006109695A (en) * 2004-10-08 2006-04-20 Linear Technol Corp Circuit and method for flexible current splitting in monolithic switching regulators
JP4660339B2 (en) * 2004-10-08 2011-03-30 リニアー テクノロジー コーポレイション Circuit and method for flexible current splitting in monolithic switching regulators

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