JPS54106156A - Signal generator - Google Patents

Signal generator

Info

Publication number
JPS54106156A
JPS54106156A JP1399778A JP1399778A JPS54106156A JP S54106156 A JPS54106156 A JP S54106156A JP 1399778 A JP1399778 A JP 1399778A JP 1399778 A JP1399778 A JP 1399778A JP S54106156 A JPS54106156 A JP S54106156A
Authority
JP
Japan
Prior art keywords
output
counter
value
reset
rom3a
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
JP1399778A
Other languages
Japanese (ja)
Inventor
Taketo Toyoda
Hidetoshi Ueda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1399778A priority Critical patent/JPS54106156A/en
Publication of JPS54106156A publication Critical patent/JPS54106156A/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

  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE:To simplify the hardware by applying the hierarchical approximate system in case the sine waveform is generated over a wide range of frequency featuring a constant phase difference. CONSTITUTION:V-f converter 1 generates the rectangular wave output featuring the frequency proportional to the input voltage, and the output is counted through binary counter 2a and 2b. For ROM3a and 3b, the output level approximate to the sine wave is set previously using the value of 2a and 2b as the addresses. D/A converter 4a and 4b generates the voltage corresponding to the weighting of the output of ROM, i,e., the signal approximated to the sine wave. In case the output of ROM3a is increased by one bit to feature a specified address, reset pulse 5 is generated to reset counter 2a. In other words, counter 2b is reset when the value of counter 2a reaches a specified value. Thus, the phase difference equivalent to the difference of the value between the two counters is given to output 6a and 6b. The same result can be obtained by presetting a certain value to the counter.
JP1399778A 1978-02-09 1978-02-09 Signal generator Pending JPS54106156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1399778A JPS54106156A (en) 1978-02-09 1978-02-09 Signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1399778A JPS54106156A (en) 1978-02-09 1978-02-09 Signal generator

Publications (1)

Publication Number Publication Date
JPS54106156A true JPS54106156A (en) 1979-08-20

Family

ID=11848859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1399778A Pending JPS54106156A (en) 1978-02-09 1978-02-09 Signal generator

Country Status (1)

Country Link
JP (1) JPS54106156A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56160107A (en) * 1980-05-14 1981-12-09 Mitsubishi Electric Corp Signal phase shifter
JPS6096029A (en) * 1983-10-31 1985-05-29 Anritsu Corp Signal generator
JPS60214033A (en) * 1984-04-09 1985-10-26 Advantest Corp Signal generation device
JPS6121119U (en) * 1984-07-11 1986-02-07 日本電子株式会社 variable phase oscillator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56160107A (en) * 1980-05-14 1981-12-09 Mitsubishi Electric Corp Signal phase shifter
JPS6096029A (en) * 1983-10-31 1985-05-29 Anritsu Corp Signal generator
JPH0454406B2 (en) * 1983-10-31 1992-08-31 Anritsu Corp
JPS60214033A (en) * 1984-04-09 1985-10-26 Advantest Corp Signal generation device
JPS6121119U (en) * 1984-07-11 1986-02-07 日本電子株式会社 variable phase oscillator

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