Electrical circuit for pre-regulation power management

A method, comprising:

• receiving an input signal;
• generating a regulation signal and a pre-regulation input signal based on the input signal;
• generating a clock signal based on at least one of the pre-regulation input signal and the regulation signal;
• generating an output signal based on the input signal using the clock signal, wherein the regulation signal is based on the output signal;
• and
• determining whether a voltage level of the regulation signal is within a voltage range;
• and
• in response to the voltage level of the regulation signal being within the voltage range, adjusting a voltage level of the pre-regulation input signal.

A system comprising:

• a first switching circuit configured to:
• receive an input signal;
• and
• generate a pre-regulation input signal based on the input signal;
• an oscillator electrically coupled to the first switching circuit, the oscillator configured to:
• receive a clock reference signal, the pre-regulation input signal, and a regulation signal;
• and
• generate a clock signal based on at least one of the pre-regulation input signal, the regulation signal, and the clock reference signal;
• a BGR circuit electrically coupled to the oscillator and the first switching circuit, the BGR circuit configured to:
• receive the regulation signal and the pre-regulation input signal;
• generate the clock reference signal based on at least one of the pre-regulation input signal and the regulation signal;
• and
• generate a UVLO reference signal and an LDO reference signal based on the regulation signal;
• a multiple stage voltage converter electrically coupled to the oscillator, the multiple stage voltage converter configured to:
• receive the clock signal and the input signal;
• and
• generate an output signal based on the input signal using the clock signal;
• an LDO circuit electrically coupled to the multiple stage voltage converter, the BGR circuit, and the oscillator, the LDO circuit configured to:
• receive the output signal and the LDO reference signal;
• and
• generate the regulation signal based on the output signal and the LDO reference signal;
• a UVLO circuit electrically coupled to the LDO circuit and the BGR circuit, the UVLO circuit configured to:
• receive the UVLO reference signal and the regulation signal;
• and
• determine whether a voltage level of the regulation signal is within a voltage range;
• and
• in response to the voltage level of the regulation signal being within the voltage range, generate a switch control signal,
• a second switching circuit electrically coupled to the UVLO circuit and the first switching circuit, the second switching circuit configured to:
• receive the switch control signal;
• and
• generate a second switch control signal, wherein the first switching circuit is configured to receive the second switch control signal and adjust a voltage level of the pre-regulation input signal based on the second switch control signal.