H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 37/02 (2006.01) H05B 33/08 (2006.01)
Patent
CA 2644382
What is described is a circuit arrangement for the pulse width modulated drive of a load (L) connected to a voltage supply line (SL), including: - a voltage control/switch device (LS) interposed between the supply line (SL) and the load (L), and adapted to be controlled as to their conduction according to a predetermined duty cycle; - a capacitive filter (C), placed downstream of the said voltage control/switch means (LS), in parallel with the load (L), and a controlled current sink (S), connected to the capacitive filter (C), and adapted to operate as a sink of the current created by the discharge of the energy stored by the capacitive filter (C), which is switched to an activated state when the voltage control/switch device (LS) is non--conducting and is switched to an inactive state when the voltage control/switch device (LS) is conducting.
Macrae & Co.
Sirio Panel S.p.a.
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