Title:
極性制御回路、熱発電回路、電子機器、無線センサ
Document Type and Number:
Japanese Patent JP5931626
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To properly control the polarity of an output voltage of a thermoelectric element.SOLUTION: A fifth transistor M5 to an eighth transistor M8 are N-channel FETs, and are provided in parallel to a first transistor M1 to a fourth transistor M4. A comparison circuit 102 receives, by its power-supply terminal, an output voltage Vof a step-up circuit of the subsequent stage. The comparison circuit 102 (i) outputs a low-level voltage to gates of the fifth transistor M5 and the eighth transistor M8 and outputs a high-level voltage to gates of the sixth transistor M6 and the seventh transistor M7 when a potential V1 of a first input line L1 is higher than a potential V2 of a second input line L2; and (ii) outputs the high-level voltage to the gates of the fifth transistor M5 and the eighth transistor M8 and outputs the low-level voltage to the gates of the sixth transistor M6 and the seventh transistor M7 when the potential V2 of the second input line L2 is higher than the potential V1 of the first input line L1.
Inventors:
Atsushi
Koichi Miyacho
Koichi Miyacho
Application Number:
JP2012160874A
Publication Date:
June 08, 2016
Filing Date:
July 19, 2012
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
H02N11/00; H01L35/28; H02H11/00; H02J1/00
Domestic Patent References:
| JP2000081493A | ||||
| JP53114029U | ||||
| JP2009011093A | ||||
| JP2005340479A | ||||
| JP2006333328A |
Foreign References:
| US3648152 |
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki