Source: https://patents.google.com/patent/US5278487
Timestamp: 2018-04-24 08:38:08
Document Index: 147918462

Matched Legal Cases: ['§120', '§120', '§120', '§120', 'art 1990', 'art 1990']

US5278487A - Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioning - Google Patents
US5278487A
US5278487A US07769337 US76933791A US5278487A US 5278487 A US5278487 A US 5278487A US 07769337 US07769337 US 07769337 US 76933791 A US76933791 A US 76933791A US 5278487 A US5278487 A US 5278487A
US07769337
Reference also is made pursuant to 35 U.S.C. §120 to pending application U.S. Ser. No. 944,503 filed Dec. 18, 1986. Said pending application refers under 35 U.S.C. §120 to earlier applications U.S. Ser. No. 876,194 filed Jun. 19, 1986 (now U.S. Pat. No. 4,709,202 issued Nov. 24, 1987), and U.S. Ser. No. 797,235 filed Nov. 12, 1985 (now U.S. Pat. No. 4,716,354 issued Dec. 29, 1987. Said applications Ser. No. 797,235 and Ser. No. 876,194 refer, pursuant to 35 U.S.C. §120 to earlier application Ser. No. 612,588 filed May 21, 1984 (now U.S. Pat. No. 4,553,081 issued Nov. 12, 1985), which is a continuation-in-part of earlier application Ser. No. 385,830 filed Jun. 7, 1982 (now U.S. Pat. No. 4,455,523 issued Jun. 19, 1984), and all four of these earlier applications are also referred to herein in accordance with the provisions of 35 U.S.C. §120.
By way of example, if the waveform of FIG. 19 corresponds to a duration of Vsw of twenty modulation increments and a charging rate of about C/8, then for temperatures of less than minus twenty degrees Celsius (-4° F.), the active duty cycles of Vsw may be set to zero; for temperatures between minus twenty degrees Celsius and minus ten degrees Celsius (+14° F.), the charging current may be set to about C/20 resulting in an average of about eight modulation increments for each active duty cycle of Vsw); for temperatures between minus ten degrees Celsius and zero degrees Celsius (32° F.), the charging current may be set to about C/16 (resulting in an average of about ten modulation increments for each active duty cycle of Vsw); for temperatures between zero degrees Celsius and ten degrees Celsius (50° F.), the charging current may be set to C/10 (to produce an average of about sixteen modulation increments for each active duty cycle of Fsw); for temperatures between ten degrees Celsius and seventy degrees Celsius (158° F.), the charging rate may be set to about C/8; above seventy degrees Celsius, the charging rate may be set to about C/100, (the active duty cycle of Fsw then varying generally between one modulation increment and two modulation increments in successive ten second intervals).
______________________________________Exemplary Table Of Desired Average Battery ChargingCurrent As A Function Of Temperature (See FIG. 6.)                     CorrespondingTemperature  Average Battery                     NominalRange (°F.)        Charging Current                     n Value______________________________________Below 2.5    Zero         02.5 to 35    C/100        135 to 76     C/20         576 to 98     C/10         10  98 to 112.5        C/6.7        15Over 112.5   Zero         0______________________________________
US07769337 1988-03-15 1991-10-01 Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioning Expired - Lifetime US5278487A (en)
US47818090 Continuation-In-Part 1990-02-09 1990-02-09
US54423090 Continuation 1990-06-26 1990-06-26
US54423090 Continuation-In-Part 1990-06-26 1990-06-26
US07837658 Continuation-In-Part US5237897A (en) 1987-03-02 1992-02-14 Automatic bandmill strain and saw tracking method and apparatus
US07837650 Continuation-In-Part US5463305A (en) 1982-06-07 1992-02-18 Fast battery charging system and method
US07859591 Continuation-In-Part US5363031A (en) 1989-12-05 1992-03-23 Fast battery charger
US07957470 Continuation-In-Part US5493199A (en) 1982-06-07 1992-10-06 Fast battery charger
US08134881 Continuation US5508599A (en) 1988-03-15 1993-10-12 Battery conditioning system having communication with battery parameter memory means in conjunction with battery conditioning
US5278487A true US5278487A (en) 1994-01-11
EP0729185A2 (en) * 1995-02-23 1996-08-28 Texas Instruments France Improvements in or relating to charge monitoring devices
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EP1251618A3 (en) * 2001-04-17 2004-01-28 Makita Corporation Apparatus and methods for determining appropriate timing for recharching recharcheable batteries
US5508599A (en) 1996-04-16 grant