JPS57110966A - Frequency-voltage conversion circuit - Google Patents

Frequency-voltage conversion circuit

Info

Publication number
JPS57110966A
JPS57110966A JP18879880A JP18879880A JPS57110966A JP S57110966 A JPS57110966 A JP S57110966A JP 18879880 A JP18879880 A JP 18879880A JP 18879880 A JP18879880 A JP 18879880A JP S57110966 A JPS57110966 A JP S57110966A
Authority
JP
Japan
Prior art keywords
output
low level
input signal
frequency
switch
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
JP18879880A
Other languages
Japanese (ja)
Inventor
Ryuichi Naito
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP18879880A priority Critical patent/JPS57110966A/en
Publication of JPS57110966A publication Critical patent/JPS57110966A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To ensure a stable and accurate action with a large conversion gain by generating a voltage according to the time until the frequency is counted in response to an input signal and the contents of the counting reaches a specified value from the response to the input signal. CONSTITUTION:As the input signal (a) shifts to a low level, a counter 16 is reset and starts to count the building of the reference signal fm. As the counter 16 counts by a specified frequency N, the -RC output moves to a low level to prohibit the counting. On the other hand, after the shifting of the input signal (a) to a low level, a switch S11 is turned on and the output (d) becomes 0 volt. Until the input (a) moves to a high level after the -RC output was down to a low level, a switch S12 is turned on to perform a voltage conversion. Then, a switch S13 turns on to shift the voltage of the output (d) while the input (a) is at a high level. This eliminates malfunctioning due to temperature changes, secular changes or the like thereby enabling an accurate operation.
JP18879880A 1980-12-27 1980-12-27 Frequency-voltage conversion circuit Pending JPS57110966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18879880A JPS57110966A (en) 1980-12-27 1980-12-27 Frequency-voltage conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18879880A JPS57110966A (en) 1980-12-27 1980-12-27 Frequency-voltage conversion circuit

Publications (1)

Publication Number Publication Date
JPS57110966A true JPS57110966A (en) 1982-07-10

Family

ID=16229980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18879880A Pending JPS57110966A (en) 1980-12-27 1980-12-27 Frequency-voltage conversion circuit

Country Status (1)

Country Link
JP (1) JPS57110966A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01502933A (en) * 1987-09-01 1989-10-05 サンドストランド・データ・コントロール・インコーポレーテッド Frequency counting device and method
US10603235B2 (en) 2013-03-15 2020-03-31 Hillenbrand Management Company Llc Patient repositioning system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01502933A (en) * 1987-09-01 1989-10-05 サンドストランド・データ・コントロール・インコーポレーテッド Frequency counting device and method
US10603235B2 (en) 2013-03-15 2020-03-31 Hillenbrand Management Company Llc Patient repositioning system
US11026853B2 (en) 2013-03-15 2021-06-08 Hillenbrand Management Company Llc Patient repositioning system

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