Battery under voltage protection circuit is held in low -power consumption

The utility model discloses a battery under voltage protection circuit is held in low -power consumption, include: switch S1, field effect transistor Q1 and field effect transistor Q2, wherein, switchS1 includes power input end and power output end, field effect transistor Q1's the S utmost point simultaneously with switch S1's power output end, resistance R1's one end and zener diode Z1's negative pole are connected, field effect transistor Q2's the S utmost point simultaneously with resistance R4's the other end diode Z3 anodal with the negative pole of battery is connected, the minus earthand the connected load negative pole of battery, resistance R3's other end series connection diode Z2's positive pole, diode Z2's negative pole with connected load is anodal simultaneously for fieldeffect transistor Q1's the D utmost point. The utility model discloses a protection circuit, low power dissipation, simple structure can be when under -voltage, and the deenergization is connected with the load, and reliability