JPS5720169A - Digital pulse phase shifter - Google Patents

Digital pulse phase shifter

Info

Publication number
JPS5720169A
JPS5720169A JP9273280A JP9273280A JPS5720169A JP S5720169 A JPS5720169 A JP S5720169A JP 9273280 A JP9273280 A JP 9273280A JP 9273280 A JP9273280 A JP 9273280A JP S5720169 A JPS5720169 A JP S5720169A
Authority
JP
Japan
Prior art keywords
frequency
pulse
counted
signal
register
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
JP9273280A
Other languages
Japanese (ja)
Inventor
Noboru Azusawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9273280A priority Critical patent/JPS5720169A/en
Publication of JPS5720169A publication Critical patent/JPS5720169A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Pulse Circuits (AREA)

Abstract

PURPOSE:To permit a highly accurate speed control regardless of the fluctuation of the input pulse frequency over a wide range, by generating a pulse signal having frequency a specified number of times as high as the reference signal frequency in a digital circuit, and using said pulse signal as a clock pulse to generate a pulse having a firing angle according to the firing angle-controlling signal. CONSTITUTION:The fixed oscillation frequency outputted from a high-frequency oscillator 101 is divided into 1/n in a frequency divider circuit 102 and counted up by means of an up counter 103 which is reset by said frequency-divided signal when the input pulse rises, until the input pulse rises subsequently thereto. In other words, the cycle of the input pulse is counted, and the counted value immediately before the counter 103 is reset is stored in a register 104. The output value of the register 104 is counted down by means of the pulse from the oscillator 101, and an output is generated when the counted value is 0, as well as the output of the register 104 is inputted to a down counter 105. Thereby, the firing angle can be controlled highly accurately with only a distributor.
JP9273280A 1980-07-09 1980-07-09 Digital pulse phase shifter Pending JPS5720169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9273280A JPS5720169A (en) 1980-07-09 1980-07-09 Digital pulse phase shifter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9273280A JPS5720169A (en) 1980-07-09 1980-07-09 Digital pulse phase shifter

Publications (1)

Publication Number Publication Date
JPS5720169A true JPS5720169A (en) 1982-02-02

Family

ID=14062586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9273280A Pending JPS5720169A (en) 1980-07-09 1980-07-09 Digital pulse phase shifter

Country Status (1)

Country Link
JP (1) JPS5720169A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59201672A (en) * 1983-04-30 1984-11-15 Aichi Electric Mfg Co Ltd Phase controller
EP0780975A1 (en) * 1995-12-21 1997-06-25 HE HOLDINGS, INC. dba HUGHES ELECTRONICS Precision digital phase shifter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59201672A (en) * 1983-04-30 1984-11-15 Aichi Electric Mfg Co Ltd Phase controller
JPH0526427B2 (en) * 1983-04-30 1993-04-16 Aichi Electric Co Ltd
EP0780975A1 (en) * 1995-12-21 1997-06-25 HE HOLDINGS, INC. dba HUGHES ELECTRONICS Precision digital phase shifter

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