JPS5518148A - Programmable divider - Google Patents

Programmable divider

Info

Publication number
JPS5518148A
JPS5518148A JP9084078A JP9084078A JPS5518148A JP S5518148 A JPS5518148 A JP S5518148A JP 9084078 A JP9084078 A JP 9084078A JP 9084078 A JP9084078 A JP 9084078A JP S5518148 A JPS5518148 A JP S5518148A
Authority
JP
Japan
Prior art keywords
circuit
pulse
counter
output
case
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.)
Granted
Application number
JP9084078A
Other languages
Japanese (ja)
Other versions
JPS5951784B2 (en
Inventor
Katsuyuki Ikeda
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP9084078A priority Critical patent/JPS5951784B2/en
Publication of JPS5518148A publication Critical patent/JPS5518148A/en
Publication of JPS5951784B2 publication Critical patent/JPS5951784B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses

Landscapes

  • Manipulation Of Pulses (AREA)
  • Pulse Circuits (AREA)

Abstract

PURPOSE:To secure the output of the pulse featuring about 1/2 division ratio at all times by allowing the direct input for the pulse and with no actuation of the gate circuit in case N features an even number and actuating the gate circuit every second time in case N is an odd number respectively. CONSTITUTION:Register circuit 6 perorms registering in the binary number for division ratio N; 2<m-1> counter 7 counts up to 2<m-1> with the minimum integer of m satisfying M<=2<m> in the case of the maximum number of M; coincidence circuit 8 secures the coincidence between the output of circuit 6 and counter 7; and waveform shaping circuit 11 resets assuredly counter 7 by the output of circuit 8. Then the output of circuit 11 receives 1/2 division 9 to be delivered, and at the same time gate circuit 10 deletes one shot of the pulse which is supplied to counter 7 via the external command. In other words, the pulse is supplied directly with no actuation of circuit 10 when N features an even number, and circuit 10 is actuated every second time in the case of N showing an odd number respectively. As a result, the pulse featuring about 1/2 division ratio can be delivered at all times.
JP9084078A 1978-07-25 1978-07-25 programmable divider Expired JPS5951784B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9084078A JPS5951784B2 (en) 1978-07-25 1978-07-25 programmable divider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9084078A JPS5951784B2 (en) 1978-07-25 1978-07-25 programmable divider

Publications (2)

Publication Number Publication Date
JPS5518148A true JPS5518148A (en) 1980-02-08
JPS5951784B2 JPS5951784B2 (en) 1984-12-15

Family

ID=14009773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9084078A Expired JPS5951784B2 (en) 1978-07-25 1978-07-25 programmable divider

Country Status (1)

Country Link
JP (1) JPS5951784B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595749A (en) * 1982-06-30 1984-01-12 Fujitsu Ltd Clock generating circuit
JPH04126189U (en) * 1991-05-02 1992-11-17 東急車輛製造株式会社 area sensor
JP2015139103A (en) * 2014-01-22 2015-07-30 学校法人東海大学 variable frequency divider

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595749A (en) * 1982-06-30 1984-01-12 Fujitsu Ltd Clock generating circuit
JPH04126189U (en) * 1991-05-02 1992-11-17 東急車輛製造株式会社 area sensor
JP2015139103A (en) * 2014-01-22 2015-07-30 学校法人東海大学 variable frequency divider

Also Published As

Publication number Publication date
JPS5951784B2 (en) 1984-12-15

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