Method and apparatus for providing stable voltage to...

Details Method and apparatus for providing stable voltage to... Method and apparatus for providing stable voltage to...

2008-05-13

2008-05-13

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

C324S701000

Reexamination Certificate

active

07372277

ABSTRACT:
An electrochemical cell has two terminals. One of the terminals is connected to a pulse-width-modulated (PWM) power supply and to a voltmeter. The other terminal is connected to circuitry capable of switching between amperometric and potentiometric measurement modes. A sequence of successive approximations permits selection of a PWM duty cycle giving rise to a desired voltage at the terminal connected with the power supply. In this way a stable excitation voltage is supplied to the cell even in the face of supply voltage instability or drift or instability in electronics coupled with the cell.

REFERENCES:
patent: 4659435 (1987-04-01), Brothers et al.
patent: 4999582 (1991-03-01), Parks et al.
patent: 5334304 (1994-08-01), Maget
patent: 5891409 (1999-04-01), Hsiao et al.
patent: 5994878 (1999-11-01), Ostergaard et al.
patent: 6096449 (2000-08-01), Fuglevand et al.
patent: 6176989 (2001-01-01), Shi
patent: 6292690 (2001-09-01), Petrucelli et al.
patent: 6353324 (2002-03-01), Uber et al.
patent: 6387556 (2002-05-01), Fuglevand et al.
patent: 6414318 (2002-07-01), Uber et al.
patent: 6428918 (2002-08-01), Fuglevand et al.
patent: 6646415 (2003-11-01), Nebrigic et al.
patent: 6773839 (2004-08-01), Fuglevand et al.
patent: 6811903 (2004-11-01), Vartak et al.
patent: 6858335 (2005-02-01), Schmidt et al.
patent: 2003/0178322 (2003-09-01), Iyengar et al.
patent: 2004/0220752 (2004-11-01), Gopal
patent: 2005/0069892 (2005-03-01), Iyengar et al.
patent: 2005/0212585 (2005-09-01), Kerth et al.
patent: WO 03/060154 (2003-07-01), None
patent: WO 03/069304 (2003-08-01), None
patent: WO 2005/022143 (2004-08-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for providing stable voltage to... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for providing stable voltage to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing stable voltage to... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2813295