The Kinetics model type BPP is a heavy industrial, constant potential, diode power supply with solid state switching from a "charge" voltage to an economizing "hold" voltage for the operation of DC magnetic brake or clutch coils. Units have been designed to be space and energy efficient for installation and mounting within locations of minimal footprint availability, such as a bridge crane. The BPP power supply incorporates a voltage switching system from "charging" to "holding" that eliminates the need for energy wasting economizing resistors and higher maintenance DC voltage contactors. The BPP uses the same highly successful Flux Forcing power control scheme that Kinetics uses in our industry leading, JVR-FF heavy scrape lifting magnet rectifiers.