Auxiliary supply for a switched-mode power supply controller using bang-bang regulation
A switching mode power supply and controller technology, applied in the direction of control/regulation systems, instruments, electrical components, etc., can solve the problems of increasing the size and cost of SMPS systems
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[0019] Embodiments described herein are used to provide power to a controller of a switched mode power supply (SMPS) during startup of the SMPS and during its steady state operation. This does not require an external power source to accomplish. By appropriately configuring the existing circuitry of the SMPS, embodiments are able to provide power to the SMPS controller with minimal additional circuitry.
[0020] Various embodiments will be described in the following specification and related features. These embodiments provide specific examples for explanation, and are not intended to limit the present invention. Features and aspects from the exemplary embodiments may be combined or rearranged except where not permitted.
[0021] The present invention is aimed at embodiments of SMPS. SMPSs are generally known in the art. To avoid obscuring specific aspects of the invention, known aspects associated with the control of the SMPS, such as determining the frequency and duty cyc...
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Abstract
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