Universal Power Converter Having Variable Voltage Capability and Method Therefor

摘要

A power supply includes an LLC resonant power converter to provide a first reference signal having a first voltage. The power supply also includes a DC-DC power converter to provide a second reference signal having a second voltage. The DC-DC converter receives power from the first reference signal. The power supply further includes a switch circuit including a first input to receive the first reference signal, a second input to receive the second reference signal, an input to receive a switch control message, and an output coupled to a power rail. The switch circuit is configured to connect the first reference signal and the second reference signal to the power rail based on the switch control message.

主权项

1. A power supply device comprising:
an LLC resonant power converter to provide a first reference signal having a first voltage; a DC-DC power converter to provide a second reference signal having a second voltage, an input of the DC-DC converter coupled to the first reference signal; and a switch circuit including a first input to receive the first reference signal, a second input to receive the second reference signal, an input to receive a switch control message, and an output coupled to a power rail, the switch circuit to selectively enable coupling of the first reference signal and the second reference signal to the power rail based on the switch control message.