Battery charge indicating circuit

Details Battery charge indicating circuit Battery charge indicating circuit

1983-03-21

1986-03-04

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

320 48, G08B 2100

Patent

active

045742758

ABSTRACT:
A battery charge indicator circuit includes a voltage regulator 3 which maintains the voltage at a supply terminal 202 of an alternator rectifier 2 at a first predetermined value. A diode 404 and an indicating lamp 7 are connected in series between the alternator and a battery 5, and a switching circuit 406, 407 is connected between ground and the junction of the diode and indicating lamp. A capacitor 408 is connected in parallel to the switching circuit, and a Zener diode 403 causes the switching circuit to conduct when the supply terminal voltage reaches a second predetermined value higher than the first predetermined value. The charge on the capacitor causes the indicating lamp to remain illuminated to warn the driver that the battery is not being charged, in spite of the Zener diode being cyclicly rendered conductive and non-conductive.

REFERENCES:
patent: 4254396 (1981-03-01), Saudax
patent: 4295087 (1981-10-01), Morishita et al.
patent: 4365241 (1982-12-01), Morishita
patent: 4399429 (1983-08-01), LaPorte
patent: 4471287 (1984-09-01), Morishita et al.
patent: 4471288 (1984-09-01), Morishita et al.

Affiliated with

Also associated with

Rating

Battery charge indicating circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery charge indicating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charge indicating circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1596186