Abstract: A power management system that includes a battery pack powered tool, one or more battery packs coupled to the battery pack powered tool, a first voltage regulator providing a first output voltage, a second voltage regulator providing a second output voltage, and a trigger configured to receive the first output voltage and the second output voltage. The system also includes one or more control lines configured to enable or disable one of the first voltage regulator and the second voltage regulator.

Abstract: Embodiments described herein provide power management systems including a battery pack powered tool, one or more battery packs coupled to the battery pack powered tool, a first plurality of sub circuits including a switch and one or more first peripheral outputs, and a second plurality of sub circuits including a voltage regulator and one or more second peripheral outputs. The systems also include one or more control lines for enabling or disabling the first plurality of sub circuits and the second plurality of sub circuits.

Abstract: A method for removing oxidation of a contact of a trigger switch of a battery pack powered tool. The method includes receiving power from one or more battery packs coupled to the battery pack powered tool, determining, with a controller, that a trigger of the battery pack powered tool has been actuated, and providing, with a wetting circuit, power from the one or more battery packs to the contact to remove an oxidation surface film on the contact.

Abstract: Disclosed is a system to dynamically operate a valve including a direct current (DC) stepper motor. The system includes a valve detector to identify the valve and to determine whether the valve is operable in multiple operating modes. The system further includes a mode selector electrically coupled to the valve detector. The mode selector selects an operating mode from the multiple operating modes. The system further includes a current selector electrically coupled to the mode selector. The current selector selects a target current level based on the selected operating mode. The system further includes a motor controller electrically coupled to the current selector and the DC stepper motor. The motor controller drives the DC stepper motor with a drive current at the selected target current level.