FIELD: electrical engineering.
SUBSTANCE: invention relates to compact and efficient power conversion devices. Result is achieved due that LED driver (10) for driving at least two LED strings (131, 133) comprises dual output power converter (103) for converting input voltage (Vin) into two different output voltages for driving two sets of said at least two LED strings (131, 133), controller (107) for controlling dual output power converter (103) based on at least one input set point, said dual output converter (103) comprising a switched capacitor converter comprising a plurality of switches, a plurality of capacitors, the outputs of dual output power converter (103) being connected to internal nodes of dual power converter (103), controller (107) being further adapted to deliver PWM output control signals for driving the switches, the duty cycle of which is a function of said at least one input set point.
EFFECT: technical result is power management at several outputs via a single power conversion module.
14 cl, 8 dwg
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Authors
Dates
2018-11-07—Published
2014-09-19—Filed