Abstract: A charge wake-up circuit for Battery Management System (BMS). The circuit includes the charge-discharge module and charge detection module. The charge-discharge module contains Charger W, load R1, first switch K1, second switch K2, battery E, charge MOSFET M1 and discharge MOSFET M2. The charge detection module contains inductance L 1, first diode D1, second diode D2, first resistor R2, second resistor R3, third resistor R4, fourth resistor R5, fifth resistor R6, sixth resistor R7, seventh resistor RS, first capacitor C1, second capacitor C2, third capacitor C3, first transistor Q1, second transistor Q2 and photocoupler U.

Abstract: This invention involves a battery short-circuit protection circuit installed in a battery-load circuit. In the battery-load circuit, there is a battery and a load RL. The battery and RL form a circuit. The two ends of the battery are positive discharge end P+ and negative discharge end P?, respectively. The battery short-circuit protection circuit is in series with the battery-load circuit. The battery short-circuit protection circuit includes a charge-discharge circuit, a current amplifier circuit, and a current comparator circuit. The charge-discharge circuit includes MOS transistors and a sampling resistor. The current amplifier circuit includes a signal conditioning circuit and a current amplifier. The current comparator circuit includes a current comparator, a current reference circuit for short-circuit protection consisting, a MOS transistor, a diode, a resistor, and an optronics relay.

Abstract: This invention involves a battery short-circuit protection circuit installed in a battery-load circuit. In the battery-load circuit, there is a battery and a load RL. The battery and RL form a circuit. The two ends of the battery are positive discharge end P+ and negative discharge end P?, respectively. The battery short-circuit protection circuit is in series with the battery-load circuit. The battery short-circuit protection circuit includes a charge-discharge circuit, a current amplifier circuit, and a current comparator circuit. The charge-discharge circuit includes MOS transistors and a sampling resistor. The current amplifier circuit includes a signal conditioning circuit and a current amplifier. The current comparator circuit includes a current comparator, a current reference circuit for short-circuit protection consisting, a MOS transistor, a diode, a resistor, and an optronics relay.