| 摘要 |
The system comprises: a DC voltage source (2); a first controlled conduction electronic control device (Q) or master device, disposed between the load (3) and the source (2) in a first circuit branch and having an input terminal intended to receive a conduction control signal (INS); at least one further controlled conduction electronic controlled device (Q1) or slave device, disposed between the load (3) and the source (2) in a further circuit branch essentially in parallel to the said first circuit branch; slave circuit devices (4, 5, 8) arranged to control the conduction of current of the said at least one slave device (Q1) in a manner tending to reduce the difference between the currents flowing in operation in the master device (Q) and in the or a slave device (Q1); and balancing circuit devices (20-22) arranged to generate and apply to the input terminal of the master control device (Q) an auxiliary conduction control signal tending to increase the conduction of current in this master control device (Q) when the current flowing in operation in the or a slave control device (Q1) exceeds the current flowing in the master control device (Q). <IMAGE>
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