H - Electricity – 03 – B
Patent
H - Electricity
03
B
H03B 5/18 (2006.01) H05B 41/282 (2006.01) H02M 7/5383 (2006.01)
Patent
CA 2396084
The present invention relates to a free-running circuit arrangement for operating a load (La) , having at least one switching element (T1, T2), a freewheeling diode that is connected in an anti-parallel fashion relative to the main current direction of the at least one switching element (T1, T2), a load circuit (L3, C6, C5) and a control resonant circuit (L2, C E,T1, C E,T2) which comprises at least one control inductor (L2) and at least one self-capacitance (C E,T1, C E,T2) of the at least one switching element (T1, T2), the at least one switching element (T1, T2) having a control electrode, a working electrode and a reference electrode, there acting between the control electrode and the working electrode a capacitance (C M,T1, C M,T2) that is coupled to the control resonant circuit (L2, C E,T1, C E,T2) in such a way that energy is fed into the control resonant circuit (L2, C E,T1, C E,T2) by the charging and discharging current (I CM,T1, I CM,T2) of this capacitance (C M,T1, C M,T2), the circuit arrangement having no components for feeding energy into the control resonant circuit by electromagnetic coupling.
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
Smart & Biggar
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