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AssigneeSemiconductor Components Industries, LLC
InventorsAlan Ball, Kristie Valdez
Estimating the term…
A switching power supply (30) receives an AC voltage at a primary side of a transformer (36) and converts it to a regulated DC output voltage at the secondary side of the transformer (36). The switching power supply (30) includes a voltage regulation compensation circuit (52) to monitor the transformers primary side providing a reference signal VREF related to the transformers secondary side. Signal VCOMP is a current reference signal representative of the primary side inductor current flowing through the emitter of a power transistor (38). VCOMP is fed into a sample and hold circuit (70) and amplified to a DC level proportional to the peak level of the inductor current of the power transistor (38). The output of the sample and hold circuit (70) is fed to two inputs of a multiplier circuit (82) where the output thereof is a square of the two inputs fed to a k-factor circuit (83).
In a regulator circuit, a voltage compensation circuit for providing a variable reference signal, comprising:
A regulation circuit for use in a power supply, wherein the power supply converts an input voltage to an output voltage by switching an inductor current according to a switching transistor drive signal, the regulation circuit comprising:
A regulation circuit for use in a power supply, wherein the power supply converts an input voltage to an output voltage by switching an inductor current according to a switching transistor drive signal, the regulation circuit comprising:
A method of converting an input voltage to an output voltage in a power supply by switching an inductor current according to a switching transistor drive signal, comprising:
A method of determining an output current of a power supply which converts an input voltage to an output voltage by switching an inductor current according to a switching transistor drive signal, comprising:
Dependencies are inferred from the claim text.