| 摘要 |
A safety circuit for lithium-ion and lithium polymer cells which provides for greater accuracy in control of the limiting voltages and currents during discharging and recharging and which includes recognition circuitry to determine presence of a particular battery type. MOSFETS, normally used to provide charge limiting voltages, in recharging cells or batteries but which are relatively imprecise, are removed from the circuit to the extent that they are not used in the measurement of current for control purposes. The function of current limit determinations is instead provided by highly accurate resistive elements.
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