Car-used spare power system quick charging device

• US 6,060,861 A
• Filed: 07/02/1999
• Issued: 05/09/2000
• Est. Priority Date: 07/02/1999
• Status: Expired due to Fees

• Current Assignee: Long Well Electronics Corp.
• Original Assignee: Long Well Electronics Corp.
• Inventors: Feng, Hsiu-Mei
• Primary Examiner(s): Tso, Edward H.
• Assistant Examiner(s): Luk, Lawrence
• Application Number:
  US09/346,291
• Time in Patent Office: 312 Days
• Field of Search: 320/104, 320/105, 320/114, 320/108, 320/153, 320/154
• US Class Current: 320/105
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

A car-used spare power system quick charging device including a switch, a boosting circuit, a detecting circuit, an indicating circuit, an unstable circuit, a pulse cutting circuit and multiple charging batteries. The detecting circuit serves to detect the voltage state of the charging battery. The indicating circuit serves to indicate the voltage state of the charging battery detected by the detecting circuit. The switch is used to switch the charging/discharging modes. When the charging battery is detected to be in middle or low voltage state, the boosting circuit serves to boost the charging battery into high voltage. The charging battery charges/discharges the car battery by way of pulse so as to protect the charging battery from damage due to over-heating and make the charging battery 100% release voltage.

Claims

1. A car-used spare power system quick charging device comprising:

a switch connected with a charged battery, boosting circuit and car battery for selecting the charging/discharging time;

a detecting circuit for detecting the voltage state of the charging battery;

an indicating circuit for indicating the voltage state of the charging battery detected by the detecting circuit;

a boosting circuit for boosting the charging battery into high voltage;

an unstable circuit for generating pulse-wave to the output of the boosting circuit; and

a pulse cutting circuit for detecting and switching less current.

2. A car-used spare power system quick charging device as claimed in claim 1, wherein the detecting circuit includes two comparators for comparing voltage of the charging battery with voltage of the car battery.

3. A car-used spare power system quick charging device as claimed in claim 1, Wherein the boosting circuit includes a transformer.

4. A car-used spare power system quick charging device as claimed in claim 1, wherein the unstable circuit generates pulse-wave.