| 摘要 |
An electronic supply system for capacitive-discharge ignition device of internal combustion engines. An auxiliary circuit (S1, R2) for circulating the charge current of the ignition capacitor (C3) is connected in parallel to a stator winding (L1) of the electric generator (11); the auxiliary circuit comprises an electronic switch (S1) and a voltage comparator (CP1) supplied with a control voltage signal (V2), function of the current flowing in the auxiliary circuit (S1, R2); the voltage comparator (CP1) is furtherly supplied with a second control voltage signal (V3) for holding said operative state; said control voltages (V2, V3) are compared with a reference voltage (V1) and the voltage comparator (CP1) rapidly causes ON-OFF of the auxiliary circuit (S1, R2) to charge the capacitor (C3) with the energy stored in the stator winding (L1) of the generator as the voltage (Vg) of the generator (11) changes. An inhibition device (CP2) prevents operation of the comparator (CP1) when the maximum charge level of the capacitor (C3) is reached. <IMAGE> |
