Title:
MOTOR ROTATIONAL POSITION DETECTOR
Document Type and Number:
Japanese Patent JP3770039
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent malfunctions of a microcomputer, even if noise is superposed on a harness connecting a position signal output circuit and the microcomputer.
SOLUTION: A connector 25 is provided with terminals E and G for supplying supply voltage to position signal output circuits 16u, 16v, and 16w, and terminals F1, F2, and F3 for inputting position signals from the position signal output circuits 16u, 16v, and 16w. The terminals F1, F2, and F3 are connected with the input ends 11u, 11v, and 11w of the microcomputer 11, respectively, via a filter 22. The microcomputer 11 uses a first power supply 21 as operation power supply and is also connected with a second power supply 40 at the terminal E. Although the position signal output circuits 16u, 16v, and 16w and the connector 25 are connected with each other through the harness 50, even if noise is superposed on the harness 50, however, the noise will not propagate to the first power supply 21 and will not have influence the microcomputer 11.
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Inventors:
Masafumi Hashimoto
Norio Kagimura
Norio Kagimura
Application Number:
JP2000086448A
Publication Date:
April 26, 2006
Filing Date:
March 27, 2000
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
G01B7/30; G01D5/244; G01D5/245; H02P6/06; H02P6/08; H02P6/16; H02P7/00; H02P29/00; (IPC1-7): H02P6/16; G01B7/30; G01D5/245; H02P7/00
Domestic Patent References:
| JP5276785A | ||||
| JP6303793A |
Attorney, Agent or Firm:
Shigeaki Yoshida
Yoshitake Hidetoshi
Takahiro Arita
Yoshitake Hidetoshi
Takahiro Arita