Method and apparatus for reconditioning and charging a battery

• US 6,344,729 B1
• Filed: 10/20/2000
• Issued: 02/05/2002
• Est. Priority Date: 10/20/2000
• Status: Expired due to Fees

• Current Assignee: Tachiang Technology Corp.
• Original Assignee: Tachiang Technology Corp.
• Inventors: Chiang, Tai-An
• Primary Examiner(s): Tso, Edward H.
• Application Number:
  US09/693,081
• Time in Patent Office: 473 Days
• Field of Search: 320/127, 320/128, 320/129, 320/131, 320/139, 320/141, 320/145
• US Class Current: 320/131
• CPC Class Codes: H02J 7/0069 Charging or discharging for charge maintenance, battery initiation or rejuvenation
• CPC Class Codes: Y02W 30/84 Recycling of batteries or fuel cells

Abstract

A method and apparatus for reconditioning and charging a battery is disclosed. The lead-acid battery rejuvenator apparatus comprises of an oscillator, a frequency divider and a pair of transistors. The oscillator outputs a frequency signal. The frequency divider receives the frequency signal and splits the frequency signal into a plurality of non-overlapping operating frequency signals. These operating frequency signals are sent to respective operating frequency output terminals. The three terminals of a first transistor arc electrically connected to one terminal of an inductor, the negative terminal of the lead-acid battery and one of the operating frequency output terminals. The other terminal of the inductor is electrically connected to the negative terminal of the lead-acid battery. The three terminals of a second transistor are electrically connected to one terminal of a resistor, the negative terminal of the lead-acid battery and another operating frequency output terminal. The other terminal of the resistor is electrically connected to the positive terminal of the lead-acid battery.

Claims

1. A lead-acid battery rejuvenator, comprising:

an oscillator for outputting a frequency signal;

a frequency divider having a plurality of operating frequency output signal, wherein the frequency divider receives the frequency signal from the oscillator and chops up the input frequency signal into a plurality of non-overlapping operating frequency signals, then the operating frequency signals are distributed to respective operating frequency output terminals;

a first transistor, wherein the load terminal of the first transistor is electrically connected to one terminal of an inductor while the other terminal of the inductor is electrically connected to the positive terminal of the lead-acid battery, the ground terminal of the first transistor is electrically connected to the negative terminal of the lead-acid battery, and the control terminal of the first transistor is electrically connected to one of the operating frequency output terminals of the frequency divider; and

a second transistor, wherein the load terminal of the first transistor is electrically connected to one terminal of a resistor while the other terminal of the resistor is electrically connected to the positive terminal of the lead-acid battery, the ground terminal of the second transistor is electrically connected to the negative terminal of the lead-acid battery, and the control terminal of the second transistor is electrically connected to one of the operating frequency output terminals of the frequency divider.

2. The rejuvenator of claim 1, wherein the operating frequency signal is between 500˜

700 KHz.

3. The rejuvenator of claim 1, wherein the first transistor includes a metal-oxide-semiconductor (MOS) transistor.

4. The rejuvenator of claim 3, wherein the operating frequency signal is between 500˜

700 KHz.

5. The rejuvenator of claim 1, wherein the second transistor includes a metal-oxide-semiconductor (MOS) transistor.

6. The rejuvenator of claim 5, wherein the operating frequency signal is between 500˜

700 KHz.