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In modern electronic equipment that monitors the voltage to indicate battery charge, the battery appears to be draining very quickly. To the user, it appears the battery is not holding its full charge, which seems similar to memory effect. This is a common problem with high-load devices such as digital cameras and cell phones. [citation needed]
The Wilson current mirror achieves the high output impedance of equation (6) by negative feedback rather than by emitter degeneration as cascoded mirrors or sources with resistor degeneration do. The node impedance of the only internal node of the mirror, the node at the emitter of Q 3 and the collector of Q 2, is quite low. [3]
Some portable equipment does not fully utilise the low-end voltage spectrum of a battery. The power to the equipment cuts off before a relatively large portion of the battery life has been used. [citation needed] A high cut-off voltage is more widespread than perhaps assumed. For example, a certain brand of mobile phone that is powered with a ...
It may also prevent completely draining ("deep discharging") a battery, or perform controlled discharges, depending on the battery technology, to protect battery life. [3] [4] The terms "charge controller" or "charge regulator" may refer to either a stand-alone device, or to control circuitry integrated within a battery pack, battery-powered ...
Battery balancing and battery redistribution refer to techniques that improve the available capacity of a battery pack with multiple cells (usually in series) and increase each cell's longevity. [1] A battery balancer or battery regulator is an electrical device in a battery pack that performs battery balancing. [ 2 ]
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“A weakening China business does not directly hurt GM’s prospects for success in the U.S.,” Whiston says. He also notes that the China joint venture, not GM, is paying the $5 billion ...
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