Method and apparatus for protection of batteries

Details Method and apparatus for protection of batteries Method and apparatus for protection of batteries

2006-03-28

2006-03-28

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C361S093200

Reexamination Certificate

active

07019493

ABSTRACT:
The protection circuit (30) comprises at least one switch (FET1, FET2) comprising at least one control means (G1, G2) for adjusting the conductivity of said at least one switch (FET1, FET2). The conductivity is arranged to be adjustable by means of an electrical control conducted to the control means (G1, G2). The protection circuit (30) comprises means (22, 25, 26) for forming the electrical control, means (27, 28) for measuring at least one physical quantity affecting at least one switch (FET1, FET2), means (10) for providing information about the dependence of the conductivity properties of said at least one switch (FET1, FET2) on said at least one physical quantity, means (29) for determining the conductivity of said at least one switch (FET1, FET2) on the basis of said at least one physical quantity and the conductivity properties of said at least one switch (FET1, FET2) and means (29, 27) for determining the current (ITOT) conducted through said at least one switch (FET1, FET2) at least partly on the basis of said conductivity. Thus, said electrical control is arranged to be formed at least partly on the basis of the determined current.

REFERENCES:
patent: 5432371 (1995-07-01), Denner et al.
patent: 5783998 (1998-07-01), Nakajou et al.
patent: 5796290 (1998-08-01), Takahashi
patent: 5844399 (1998-12-01), Stuart
patent: 6014030 (2000-01-01), Smith et al.
patent: 6137265 (2000-10-01), Cummings et al.
patent: 6804100 (2004-10-01), Astala
patent: 0525255 (1991-07-01), None
patent: 0766362 (1996-09-01), None
patent: 0863597 (1998-09-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for protection of batteries 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 protection of batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for protection of batteries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3526065