HIGH-SPEED PARALLEL UNIT CONTROL TYPE DC POWER SUPPLY UNIT

摘要

PROBLEM TO BE SOLVED: To provide a parallel unit control type DC power supply unit capable of achieving high-speed operations by using a limit circuit.SOLUTION: The parallel unit control type DC power supply unit, executing control with a plurality of power supply units connected in parallel, includes: one error amplifier which compares a unit current average signal obtained by averaging current values output by respective power supply units to a reference voltage to output a single control signal; a connection part branching the single control signal output by the error amplifier to the respective power supply units; and a limit circuit which is provided at the respective power supply units and restricts the branched control signal by a limit signal in the respective power supply units.SELECTED DRAWING: Figure 3