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특허 상세정보

Control circuitry for thermoelectric environmental chamber

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25B-021/02    G01K-013/00   
미국특허분류(USC) 62/3 ; 62/130 ; 62/3242 ; 165/26
출원번호 US-0247634 (1981-03-25)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 76  인용 특허 : 2
초록

Circuitry for controlling the temperature of a thermoelectric environmental chamber includes a pair of digital switches for selecting any desired temperature between -10 degrees C. +79 degrees C., the digital slide switches selecting tap points of a group of series connected resistors forming a feedback loop of an operational amplifier. Three resistors connected in series with the output of the operational amplifier and the feedback resistors produce a plurality of voltages that represent upper and lower limits to tolerance range about the selected desir...

대표
청구항

Circuitry for controlling a solid state thermoelectric device in a thermoelectric environmental chamber, said solid state thermoelectric device being in thermal communication with an internal heat exchanger disposed inside a thermal compartment of said thermoelectric environmental chamber and an external heat exchanger disposed outside of said thermal compartment, said circuitry comprising in combination: a. temperature selecting means for digital selecting of a temperature that is desired to be maintained in said thermal compartment; b. first means resp...

이 특허를 인용한 특허 피인용횟수: 76

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