WO1997023008B1 - High performance battery pack - Google Patents
High performance battery packInfo
- Publication number
- WO1997023008B1 WO1997023008B1 PCT/US1996/020206 US9620206W WO9723008B1 WO 1997023008 B1 WO1997023008 B1 WO 1997023008B1 US 9620206 W US9620206 W US 9620206W WO 9723008 B1 WO9723008 B1 WO 9723008B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- battery
- circuit
- charging
- pulse charging
- Prior art date
Links
- 238000010278 pulse charging Methods 0.000 claims abstract 51
- 238000007600 charging Methods 0.000 claims abstract 25
- 239000004065 semiconductor Substances 0.000 claims abstract 17
- 230000000630 rising Effects 0.000 claims abstract 14
- 238000010304 firing Methods 0.000 claims abstract 7
- 230000001413 cellular Effects 0.000 claims 12
- 229910005580 NiCd Inorganic materials 0.000 claims 3
- -1 Nickel Metal Hydride Chemical class 0.000 claims 3
- 239000003990 capacitor Substances 0.000 claims 3
- 230000003247 decreasing Effects 0.000 claims 3
- 229910052987 metal hydride Inorganic materials 0.000 claims 3
- 229910052759 nickel Inorganic materials 0.000 claims 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 3
- 230000000087 stabilizing Effects 0.000 claims 3
Abstract
A battery pack for an electrical device contains rechargeable batteries for supplying power to the electrical device and a transformerless pulse charging circuit. The pulse charging circuit generates a pulse charging current from received AC current, and charges the rechargeable batteries with the generated pulse charging current. A semiconductor switch (12) generates the pulse charging current from the received AC current and supplies the pulse charging current to the batteries. A ramp generator circuit (14) generates a linearly rising waveform beginning at each zero crossing of the rectified AC current. A current sense amplifier circuit (15) measures the average value of current pulses through the battery and generates a signal proportional to an average charging current. A triggering circuit (18) generates the gate firing pulses for the semiconductor switch (12) according to the linearly rising waveform and the average charging current amplifier waveform.
Claims
1. An electrically powered device, including a removable rechargeable battery pack for powering said electrically powered device, said battery pack comprising: at least one rechargeable battery; and a transformerless pulse charging circuit for receiving an input AC current and a current value from said at least one battery, generating a pulse charging current proportional to said received AC current and current value, and charging said at least one rechargeable battery by applying said pulse charging current to said at least one battery.
2. The electrically powered device of Claim 1, wherein said charging circuit further comprises: a rectifier circuit means for fully rectifying the received AC current; a semiconductor switching means coupled to the rectifier circuit means for generating said pulse charging current from said rectified AC current and supplying said pulse charging current to said at least one battery; a ramp generator circuit, coupled to said rectifier circuit means, for generating a linearly rising waveform beginning at each zero crossing ofthe rectified AC current; a current sense amplifier circuit, coupled to the output terminal of said at least one battery, for measuring the average value of current through said at least one battery and generating a first DC level value proportional to said average charging value; and a triggering circuit for generating gate firing pulses for the semiconductor switching means according to said linearly rising waveform and said generated DC level value.
3. The electrically powered device of Claim 2, wherein said charging circuit further comprises a number of capacitors in parallel between the semiconductor switch and said at least one battery for stabilizing said at least one battery impedance.
4. The electrically powered device of Claim 2, further comprising a soft- start circuit, between said at least one battery and said current sense amplifier circuit, - 16-
for sending a decreasing current to said current sense amplifier circuit at initial reception of said input AC current thereby slowly increasing the pulse charge current to said at least one battery.
5. The electrically powered device of Claim 2, further comprising an absolute temperature circuit, coupled to said current sense amplifier circuit, for sending current to said current sense amplifier circuit when a preset charging temperature is reached, forcing the current sense amplifier circuit to generate a second DC level greater than said first DC level, thereby pulse charging said at least one battery at a lower pulse charging level.
6. The electrically powered device of Claim 2, further comprising an absolute time circuit, coupled to said current sense amplifier circuit, for sending current to said current sense amplifier circuit when a preset charging time is reached, forcing the current sense amplifier circuit to generate a second DC level greater than said first DC level, thereby pulse charging said at least one battery at a lower pulse charging level.
7. The electrically powered device of Claim 1, wherein said at least one battery is a NiCd battery.
8. The electrically powered device of Claim 1, wherein said at least one battery is a Nickel Metal Hydride battery.
9. A cellular phone, including a removable rechargeable battery pack, said battery pack comprising: at least one rechargeable battery; and a transformerless pulse charging circuit for receiving an input AC current and a current value from said at least one battery, generating a pulse charging current proportional to said received AC current and current value, and charging said at least one rechargeable battery by applying said pulse charging current to said at least one battery.
10. The cellular phone of Claim 9, wherein said recharging circuit comprises: a rectifier circuit means for fully rectifying the received AC current; - 17-
a semiconductor switching means coupled to the rectifier circuit means for generating said pulse charging current from said rectified AC current and supplying said pulse charging current to said at least one battery; a ramp generator circuit, coupled to said rectifier circuit means, for generating a linearly rising waveform beginning at each zero crossing ofthe rectified AC current; a current sense amplifier circuit, coupled to the output terminal of said at least one battery, for measuring the average value of current through said at least one battery and generating a first DC level value proportional to said average charging value; and a triggering circuit for generating gate firing pulses for the semiconductor switching means according to said linearly rising waveform and said generated DC level value.
11. The cellular phone of Claim 10, wherein said charging circuit further comprises a number of capacitors in parallel between the semiconductor switch and said at least one battery for stabilizing said at least one battery impedance.
12. The cellular phone of Claim 10, further comprising a soft-start circuit, coupled between said output of said at least one battery and said current sense amplifier circuit, for sending a decreasing current to said current sense amplifier circuit at initial reception of said input AC current thereby slowly increasing the pulse charge current to said at least one battery.
13. The cellular phone of Claim 10, further comprising an absolute temperature circuit, coupled to said current sense amplifier circuit, for sending current to said current sense amplifier circuit when a preset charging temperature is reached, forcing the current sense ampUfier circuit to generate a second DC level greater than said first DC level, thereby pulse charging said at least one battery at a lower pulse charging level.
14. The cellular phone of Claim 11, further comprising an absolute time circuit, coupled to said current sense amplifier circuit, for sending current to said current sense amplifier circuit when a preset charging time is reached, forcing the current sense amplifier circuit to generate a second DC level greater than said first DC level, thereby pulse charging said at least one battery at a lower pulse charging level. - 18-
15. The cellular phone of Claim 9, wherein said at least one battery is a NiCd battery.
16. The cellular phone of Claim 9, wherein said at least one battery is a Nickel Metal Hydride battery.
17. A cellular phone removable battery pack, comprising: at least one rechargeable battery; and a transformerless pulse charging circuit for receiving an input AC current and a current value from said at least one battery, generating a pulse charging current proportional to said received AC current and current value, and charging said at least one rechargeable battery by applying said pulse charging current to said at least one battery.
18. The cellular phone removable battery pack of Claim 17, wherein said charging circuit further comprises: a rectifier circuit means for fully rectifying the received AC current; a semiconductor switching means coupled to the rectifier circuit means for generating said pulse charging current from said rectified AC current and supplying said pulse charging current to said at least one battery; a ramp generator circuit, coupled to said rectifier circuit means, for generating a linearly rising waveform beginning at each zero crossing ofthe rectified AC current; a current sense amplifier circuit, coupled to the output terminal of said at least one battery, for measuring the average value of current through said at least one battery and generating a first DC level value proportional to said average charging value; and a triggering circuit for generating gate firing pulses for the semiconductor switching means according to said linearly rising waveform and said generated DC level value.
19. The battery pack of Claim 18, wherein said charging circuit further comprises a number of capacitors in parallel between the semiconductor switch and said at least one battery for stabilizing said at least one battery impedance.
20. The battery pack of Claim 18, further comprising a soft-start circuit, coupled between said output of said at least one battery and said current sense amplifier circuit, for sending a decreasing current to said current sense amplifier - 19-
circuit at initial reception of said input AC current thereby slowly increasing the pulse charge current to said at least one battery.
21. The battery pack of Claim 18, further comprising an absolute temperature circuit, coupled to said current sense amplifier circuit, for sending current to said current sense amplifier circuit when a preset charging temperature is reached, forcing the current sense amplifier circuit to generate a second DC level greater than said first DC level, thereby pulse charging said at least one battery at a lower pulse charging level.
22. The battery pack of Claim 18, further comprising an absolute time circuit, coupled to said current sense amplifier circuit, for sending current to said current sense amplifier circuit when a preset charging time is reached, forcing the current sense amplifier circuit to generate a second DC level greater than said first DC level, thereby pulse charging said at least one battery at a lower pulse charging level.
23. The battery pack of Claim 17, wherein said at least one battery is a NiCd battery.
24. The battery pack of Claim 17, wherein said at least one battery is a Nickel Metal Hydride battery.
25. An electrically powered device, including a removable rechargeable battery pack for powering said electrically powered device, said battery pack comprising: at least one rechargeable battery; and a transformerless pulse charging circuit for receiving an input AC current and a current value from said at least one battery, generating a pulse charging current proportional to said received AC current and current value, and charging said at least one rechargeable battery by applying said pulse charging current to said at least one battery, said pulse charging circuit further comprising: a rectifier circuit means for fully rectifying the received AC current; a semiconductor switching means coupled to the rectified circuit means for generating said pulse charging current from said rectified AC current and supplying said pulse charging current to said at least one battery; -20-
a ramp generator circuit, coupled to said rectified circuit means, for generating a linearly rising waveform beginning at each zero crossing ofthe rectified AC current; a current sense amplifier circuit, coupled to the output terminal of said at least one battery, for measuring the average value of current through said at least one battery and generating a first DC level value proportional to said average charging value; and a triggering circuit for generating gate firing pulses for the semiconductor switching means according to said linearly rising waveform and said generated DC level value.
26. A cellular phone, including a removable rechargeable battery pack, said battery pack comprising: at least one rechargeable battery; and a transformerless pulse charging circuit for receiving an input AC current and a current value from said at least one battery, generating a pulse charging current proportional to said received AC current and current value, and charging said at least one rechargeable battery by applying said pulse charging current to said at least one battery, said pulse charging circuit comprising: a rectifier circuit means for fully rectifying the received AC current; a semiconductor switching means coupled to the rectifier circuit means for generating said pulse charging current from said rectified AC current and supplying said pulse charging current to said at least one battery; a ramp generator circuit, coupled to said rectifier circuit means, for generating a linearly rising waveform beginning at each zero crossing ofthe rectified AC current; a current sense amplifier circuit, coupled to the output terminal of said at least one battery, for measuring the average value of current through said at least one battery and generating a first DC level value proportional to said average charging value; and a triggering circuit for generating gate firing pulses for the semiconductor switching means according to said linearly rising waveform and said generated DC level value.
27. A cellular phone removable battery pack, comprising: at least one rechargeable battery; and a transformerless pulse charging circuit for receiving an input AC current and a current value from said at least one battery, generating a pulse charging current -21 -
proportional to said received AC current and current value, and charging said at least one rechargeable battery by applying said pulse charging current to said at least one battery, said pulse charging circuit further comprising: a rectifier circuit means for fully rectifying the received AC current; a semiconductor switching means coupled to the rectifier circuit means for generating said pulse charging current from said rectified AC current and supplying said pulse charging current to said at least one battery; a ramp generator circuit, coupled to said rectifier circuit means, for generating a linearly rising waveform beginning at each zero crossing ofthe rectified AC current; a current sense amplifier circuit, coupled to the output terminal of said at least one battery, for measuring the average value of current through said at least one battery and generating a first DC level value proportional to said average charging value; and a triggering circuit for generating gate firing pulses for the semiconductor switching means according to said linearly rising waveform and said generated DC level value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU15660/97A AU1566097A (en) | 1995-12-18 | 1996-12-18 | High performance battery pack |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/574,602 | 1995-12-18 | ||
| US08/574,602 US5694022A (en) | 1995-12-18 | 1995-12-18 | Variable pulse recharging battery pack |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO1997023008A2 WO1997023008A2 (en) | 1997-06-26 |
| WO1997023008A3 WO1997023008A3 (en) | 1997-08-21 |
| WO1997023008B1 true WO1997023008B1 (en) | 1997-10-30 |
Family
ID=24296825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1996/020206 WO1997023008A2 (en) | 1995-12-18 | 1996-12-18 | High performance battery pack |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5694022A (en) |
| AU (1) | AU1566097A (en) |
| WO (1) | WO1997023008A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5939865A (en) * | 1998-03-31 | 1999-08-17 | Aspen Electronics, Inc. | Rechargeable battery having overcharge protection circuit and method of charging rechargeable battery |
| US6891354B2 (en) | 1999-07-15 | 2005-05-10 | Fazakas Andras | Method for detecting slow and small changes of electrical signals |
| HU223696B1 (en) | 1999-07-15 | 2004-12-28 | András Fazakas | Circuit arrangement and method for pulse-like recharging batteries |
| US7672798B2 (en) * | 2002-06-27 | 2010-03-02 | Spx Corporation | Apparatus and method for determining the temperature of a charging power source |
| US7472820B2 (en) | 2002-09-06 | 2009-01-06 | Spx Corporation | Code reading apparatus and method |
| US7583054B1 (en) | 2004-08-09 | 2009-09-01 | Harris James J | Portable power supply and recharging apparatus |
| US7218077B2 (en) * | 2004-09-24 | 2007-05-15 | Taser International, Inc. | Systems and methods for signal generation using limited power |
| US7701173B2 (en) * | 2005-12-13 | 2010-04-20 | Research In Motion Limited | Charging and power supply for mobile devices |
| US20240039061A1 (en) * | 2022-07-26 | 2024-02-01 | Iontra Inc | Smart battery |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3471771A (en) * | 1967-02-02 | 1969-10-07 | Rca Corp | Self-regulating switching circuit |
| US3766463A (en) * | 1971-12-17 | 1973-10-16 | M Ruben | Battery charging circuit with scr{40 s triggered by unijunction circuits having means for preventing unijunction from being latched on |
| US3876921A (en) * | 1972-02-04 | 1975-04-08 | Christie Electric Corp | Integrated rejuvenable energy system and method |
| US3781632A (en) * | 1973-02-23 | 1973-12-25 | Sno Start Inc | Series type solid state voltage regulator which provides constant voltage to a storage device |
| US3970913A (en) * | 1974-12-16 | 1976-07-20 | Briggs & Stratton Corporation | State-of-charge indicator for voltage-regulated battery charger |
| US4019111A (en) * | 1975-05-14 | 1977-04-19 | Introl Corporation | Battery charger with automatic change from current to voltage mode control |
| US4220909A (en) * | 1976-05-13 | 1980-09-02 | R. E. Phelon Company | Half-wave regulator rectifier for an alternator |
| US4321523A (en) * | 1978-10-05 | 1982-03-23 | The Gates Rubber Company | Battery charger and power supply circuitry |
| US4622507A (en) * | 1985-02-01 | 1986-11-11 | David Persen | Integrated battery and recharger |
| US4712055A (en) * | 1987-04-01 | 1987-12-08 | The Singer Company | Battery charger circuit |
| US4998056A (en) * | 1989-03-31 | 1991-03-05 | Makita Corporation Of America | Battery charger |
| US5270635A (en) * | 1989-04-11 | 1993-12-14 | Solid State Chargers, Inc. | Universal battery charger |
| JP2837687B2 (en) * | 1989-05-22 | 1998-12-16 | 三信工業株式会社 | Charging device |
| US5214369A (en) * | 1991-12-30 | 1993-05-25 | The Charles Machine Works, Inc. | Universal battery charger |
-
1995
- 1995-12-18 US US08/574,602 patent/US5694022A/en not_active Expired - Fee Related
-
1996
- 1996-12-18 AU AU15660/97A patent/AU1566097A/en not_active Abandoned
- 1996-12-18 WO PCT/US1996/020206 patent/WO1997023008A2/en active Application Filing
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