Patent ID: 6552518
Filing Date: 2003-04-22
Classification: G05F,H02M,Y10S

Abstract:
Current generator with thermal protection having an input terminal and an output terminal, said current generator comprising:a voltage generator; a resistance having first and second terminals; a first controlled switch having first and second terminals and a control terminal, the control terminal being coupled to said voltage generator, the first terminal being connected to said input terminal, and the second terminal being connected to the first terminal of said resistance; a second controlled switch having first and second terminals and a control terminal, the control terminal being coupled to said voltage generator, the first terminal being connected to the second terminal of said resistance, and the second terminal being connected to said output terminal; a temperature sensor coupled to said current generator for measuring the temperature of said current generator; and a control circuit coupled to said second controlled switch and said temperature sensor, said control circuit opening said second controlled switch when said temperature sensor indicates that the temperature of said current generator is above a preset temperature.