A power system includes a battery charge path providing current from a battery to a load, a first thermistor having a resistance that decreases with an increase in a first temperature, a bypass path having a switch element to selectively permit current flow along the bypass path, and a switch circuit having a second thermistor with a resistance that increases responsive to an increase in a second temperature to a threshold temperature range. Responsive to the second temperature being below the threshold temperature range, the switch circuit can prevent current flow along the bypass path at the same time the first thermistor substantially restricts current flow between the battery and load. Responsive to the second temperature exceeding the threshold temperature range, the switch circuit can allow current flow along the bypass path at the same time the first thermistor allows current to flow between the battery and load.
BATTERY STRESS RELIEF SYSTEM WITH BYPASS
2025-06-12
Patent
Electronic Resource
English