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Pulse-width modulation speed controllable DC brushless cooling fan 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02K-009/06
출원번호 US-0695469 (1991-05-03)
발명자 / 주소
  • Canon K. N. Hsu (No. 31-1
  • Shien Pam Rd. Kuei Shan Ind. Zone
  • Taoyuan TWX)
인용정보 피인용 횟수 : 100  인용 특허 : 0

초록 ▼

A cooling fan for use inside a circuit system, especially a pulse-width modulation speed controllable DC cooling fan which can automatically vary its speed according to the internal temperature of the circuit system. An object of the invention is to control the rotation speed of the fan by a pulse-w

대표청구항 ▼

A pulse-width modulation, speed controllable D brushless cooling fan for use inside a circuit system which is characterized in that said cooling fan is provided with a pulse-width modulation fan speed controlling circuit which comprises a driving IC, a Hall effect inductive IC connected with the two

이 특허를 인용한 특허 (100)

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