JPS5756696A - Fan speed control circuit for cooling and heating equipment - Google Patents

Fan speed control circuit for cooling and heating equipment

Info

Publication number
JPS5756696A
JPS5756696A JP55131577A JP13157780A JPS5756696A JP S5756696 A JPS5756696 A JP S5756696A JP 55131577 A JP55131577 A JP 55131577A JP 13157780 A JP13157780 A JP 13157780A JP S5756696 A JPS5756696 A JP S5756696A
Authority
JP
Japan
Prior art keywords
pulse
cooling
control member
electric current
heating equipment
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
JP55131577A
Other languages
Japanese (ja)
Inventor
Tsunehiko Sotoike
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion 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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP55131577A priority Critical patent/JPS5756696A/en
Publication of JPS5756696A publication Critical patent/JPS5756696A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Air Blowers (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To adjust the speed of fan without any stage and reduce the electrical loss accompanied by the adjustment by changing an average power of pulse and controlling the electric current for fan, especially applied for cooling and heating equipment installed on a vehicle.
CONSTITUTION: A pulse of constant cycle is generated from a pulse generator 10. The pulse is transmitted to a current control member 9. Under this condition, the pulse generator 10 is controlled by a pulse control member 11 responding to the cooling and heating conditions, thereby changing the frequency or the width of the output pulse. The average electric power of the pulse varied with the change of the frequency or width of the output pulse. The electric power is supplied to the electric current control member 9. With this construction, switching elements such as the transistors of the electric current member 9 merely repeat the ON, OFF operation, thereby reducing the heat volume. As a result, the accident accompanied by heat volume can be prevented. At the same time unnecessary power consumption will not be required.
COPYRIGHT: (C)1982,JPO&Japio
JP55131577A 1980-09-24 1980-09-24 Fan speed control circuit for cooling and heating equipment Pending JPS5756696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55131577A JPS5756696A (en) 1980-09-24 1980-09-24 Fan speed control circuit for cooling and heating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55131577A JPS5756696A (en) 1980-09-24 1980-09-24 Fan speed control circuit for cooling and heating equipment

Publications (1)

Publication Number Publication Date
JPS5756696A true JPS5756696A (en) 1982-04-05

Family

ID=15061299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55131577A Pending JPS5756696A (en) 1980-09-24 1980-09-24 Fan speed control circuit for cooling and heating equipment

Country Status (1)

Country Link
JP (1) JPS5756696A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188865U (en) * 1984-11-19 1986-06-10
JPH02231259A (en) * 1989-01-21 1990-09-13 Wabco Westinghouse Fahrzeugbremsen Gmbh Safety circuit
CN106917769A (en) * 2017-04-25 2017-07-04 李晓平 A kind of fan vibration supervising device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188865U (en) * 1984-11-19 1986-06-10
JPH02231259A (en) * 1989-01-21 1990-09-13 Wabco Westinghouse Fahrzeugbremsen Gmbh Safety circuit
CN106917769A (en) * 2017-04-25 2017-07-04 李晓平 A kind of fan vibration supervising device

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