System and method for powering a switching converter
First Claim
Patent Images
1. A switching converter comprising:
- a depletion mode power switch coupled to an enhancement mode power switch via a switching node;
an energy storing element coupled to the depletion mode power switch via a first path;
wherein the first path comprises a resistance; and
a second path coupling the depletion mode power switch to the energy storing element, the second path comprising a coupling switch.
1 Assignment
0 Petitions
Accused Products
Abstract
A circuit and method for regulating an internal power supply of a switching converter is presented. A switching converter with a depletion mode power switch coupled to an enhancement mode power switch via a switching node and an energy storing element coupled to the depletion mode power switch is provided. The energy storing element may be adapted to provide energy to the switching converter. For instance, the energy storing element may be a capacitor. Optionally, the switching converter may comprise an inductor coupled to the depletion mode transistor, the inductor being adapted to provide an inductor current.
26 Citations
18 Claims
-
1. A switching converter comprising:
-
a depletion mode power switch coupled to an enhancement mode power switch via a switching node; an energy storing element coupled to the depletion mode power switch via a first path;
wherein the first path comprises a resistance; anda second path coupling the depletion mode power switch to the energy storing element, the second path comprising a coupling switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method of powering a switching converter comprising an energy storing element, the method comprising the steps of:
-
providing a depletion mode power switch coupled to an enhancement mode power switch via a switching node; charging the energy storing element via a first path coupling the depletion mode power switch to the energy storing element, wherein the first path comprises a resistance; and providing a second path coupling the depletion mode power switch to the energy storing element, wherein the second path comprises a coupling switch. - View Dependent Claims (16, 17, 18)
-
Specification