JPS55104123A - Variable direct current voltage generating circuit - Google Patents

Variable direct current voltage generating circuit

Info

Publication number
JPS55104123A
JPS55104123A JP1176079A JP1176079A JPS55104123A JP S55104123 A JPS55104123 A JP S55104123A JP 1176079 A JP1176079 A JP 1176079A JP 1176079 A JP1176079 A JP 1176079A JP S55104123 A JPS55104123 A JP S55104123A
Authority
JP
Japan
Prior art keywords
circuit
signal
pulse signal
fed
counter
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
JP1176079A
Other languages
Japanese (ja)
Inventor
Yoshiji Moriwaki
Yasuhiko Okuyama
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP1176079A priority Critical patent/JPS55104123A/en
Publication of JPS55104123A publication Critical patent/JPS55104123A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/02—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform
    • H03K4/026—Generating pulses having essentially a finite slope or stepped portions having stepped portions, e.g. staircase waveform using digital techniques

Landscapes

  • Direct Current Feeding And Distribution (AREA)
  • Networks Using Active Elements (AREA)

Abstract

PURPOSE:To obtain the DC voltage changed in step, by generating the pulse signal of a given period and converting into DC voltage through a given number of count of pulse signals up or down direction at the up and down counter by means of designation signal. CONSTITUTION:The pulse signal of a given period is generated with the pulse signal generating circuit 10, this pulse signal is frequency divided at the frequency dividing circuit 20, and clock signal is generated with the timer circuit 30 from the output of the circuit 20. The Vref terminal is made to level 1 with the application of power supply to start the circut 10. With this state, when the signal is fed to the UP terminal with push button, the pulse signal from the circuit 20 is fed to the up down counter 60 via the control circuit 40. While the push button is depressed at the counter 60, the pulse signal is counted and this output is fed to the output circuit 70. The circuit 7 converts the multi-bit digital signal from the counter 60 into DC voltage for conversion in step. Since the circuit 10 is operative only when the instruction signal is fed, no effect is made to the receiver from the pulses of the circuit 10.
JP1176079A 1979-02-02 1979-02-02 Variable direct current voltage generating circuit Pending JPS55104123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1176079A JPS55104123A (en) 1979-02-02 1979-02-02 Variable direct current voltage generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1176079A JPS55104123A (en) 1979-02-02 1979-02-02 Variable direct current voltage generating circuit

Publications (1)

Publication Number Publication Date
JPS55104123A true JPS55104123A (en) 1980-08-09

Family

ID=11786930

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1176079A Pending JPS55104123A (en) 1979-02-02 1979-02-02 Variable direct current voltage generating circuit

Country Status (1)

Country Link
JP (1) JPS55104123A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271966A (en) * 1975-12-11 1977-06-15 Matsushita Electric Ind Co Ltd Triangular wave generator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271966A (en) * 1975-12-11 1977-06-15 Matsushita Electric Ind Co Ltd Triangular wave generator

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