Design of Digital-High-Power LAB Charger
This paper proposes a design method how to realize a digital-high-power (DHP) lead-acid battery (LAB) charger. The main control unit P89LPC933 real-time collects the voltage and current of the charger. Then the unit sends out the control signal to pulse width modulator SG3525A, controlling the voltage and current. It co-operates the external circuit as well. This paper innovatively proposes 4-stage charging control method and strategy. This paper compares the typical chargers on the market with the one proposed by the authors in terms of horizontal and vertical dimension.
J. F. Hu et al., "Design of Digital-High-Power LAB Charger", Advanced Materials Research, Vols. 311-313, pp. 2401-2404, 2011