Temperature sensor and method for detecting trip temperature...

Details Temperature sensor and method for detecting trip temperature... Temperature sensor and method for detecting trip temperature...

2005-08-30

2005-08-30

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

External effect

Temperature

C702S099000, C702S133000, C374S170000

Reexamination Certificate

active

06937087

ABSTRACT:
A comparator circuit of a temperature sensor includes an output node and a variable current node. The output node is a first voltage at a given temperature when a current at the variable current node is less than a threshold current, and a different second voltage at the given temperature when the current at the variable current node is more than the threshold current. A variable resistance circuit includes at least n resistors of different resistive values connected in series between the variable current node of the comparator and a supply voltage, where n is an integer of 4 or more. A switching circuit is provided to selectively bypasses individual ones of the n resistors during a test sequence to determine a trip temperature of the sensor.

REFERENCES:
patent: 4014238 (1977-03-01), Southard
patent: 4395139 (1983-07-01), Namiki et al.
patent: 4465379 (1984-08-01), Misawa et al.
patent: 5025248 (1991-06-01), Bergeron
patent: 5375093 (1994-12-01), Hirano
patent: 5739593 (1998-04-01), Hayama
patent: 5795069 (1998-08-01), Mattes et al.
patent: 5875142 (1999-02-01), Chevallier
patent: 6157244 (2000-12-01), Lee et al.
patent: 6281760 (2001-08-01), Koelling et al.
patent: 6299347 (2001-10-01), Pompei
patent: 6316988 (2001-11-01), Forehand et al.
patent: 6316991 (2001-11-01), Muyshondt et al.
patent: 6320809 (2001-11-01), Raad
patent: 6667925 (2003-12-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Temperature sensor and method for detecting trip temperature... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature sensor and method for detecting trip temperature..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature sensor and method for detecting trip temperature... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3439905