Power supply of a load at a floating-potential

摘要

A circuit includes a current source intended to be series-connected with a load between two terminals of application of a first D.C. voltage. An element limits the voltage across the load and a circuit controls the value of the current in the current source with the current flowing in the element.

主权项

1. A circuit comprising:
a current source configured to be series-connected with a load between two terminals of application of a first D.C. voltage; an element configured to be coupled in parallel with the load between terminals of the load and to limit a voltage across the terminals of the load; and a control circuit configured to control a value of the current in the current source based on the current flowing in the element between the terminals of the load, wherein the value of the current in the current source is controlled proportional to power consumption in the load based on the current flowing in the element between the terminals of the load.