ESD and RF Mitigation in Handheld Battery Pack Electronics
It is imperative to protect the electronics in a consumer-removable battery pack from ESD damage. Even an upset without permanent damage may be unacceptable to the end-user. Handheld equipment that contains a transmitter also may require protection to guard against improper measurement and/or upset due to the affect of the radio frequency (RF) on the circuitry. Because the RF field strength varies as the cube of the distance from the RF source, a battery pack located close to the antenna in handheld equipment is exposed to a strong RF field.
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