Dc-dc high voltage converter
AssigneesLabinal Power Systems, Centre National De La Recherche Scientifique
InventorsFabien DUBOIS, Dominique BERGOGNE
Life of this patent
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Abstract
A DC-DC voltage converter including a main switch formed by a normally ON switch element connected in series with a normally OFF switch element including a control circuit, a load in series with the main switch, the main switch and the load being configured to be connected to terminals of a DC voltage source. A voltage source, that can be used for controlling is obtained by connecting a main peak detector circuit to the mid-point of the main switch. The control circuit of the normally OFF switch element can be supplied with the DC voltage that makes the entire device self-supplied. Such a converter can, for example, find application in aeronautics.
Claims13
1-12. (canceled)
A DC-DC converter comprising:
- a main switch including a normally ON switch element connected in series with a normally OFF switch element including a control circuit;
- a first node being common to both switch elements;
- a load in series with the main switch, the main switch and the load being configured to be connected to terminals of a D-C voltage source;
- a main peak detector circuit connected at an input to the main switch and at an output to the control circuit of the normally OFF switch element;
- wherein the main peak detector circuit includes a current unidirectional switch in series with an electrical energy reservoir, the current unidirectional switch being connected between the first node and the electrical energy reservoir, the current unidirectional switch being configured, when closed, to charge the electrical energy reservoir,
- the electrical energy reservoir delivering a main useful voltage when the current unidirectional switch is open, the main useful voltage being taken in at a second node between the electrical energy reservoir and the current unidirectional switch, the second node being connected to the control circuit of the normally OFF switch element.
Dependencies are inferred from the claim text.