Systems and methods for powering a load

A light control system, comprising:

• a power converter comprising:
• an input of the power converter configured to receive an input power from a power source during a time interval,
• a power buffer configured to store power using the input power received at the input during a first portion of the time interval,
• an output configured to output a supply power during a second portion of the time interval, wherein the supply power comprises a combination of power from (i) the input power received at the input during the second portion of the time interval and (ii) the power stored in the power buffer during the first portion of the time interval,
• a power factor corrector (PFC) between the input of the power converter and the output of the power converter having a first PFC input configured to receive power from a power source, a second PFC input configured to receive a feedback signal, and a PFC output configured to deliver power;
• and
• a feedback circuit having an output electrically coupled to the second PFC input and is configured to output the feedback signal responsive to a signal received at a first input to the feedback circuit from the PFS output and an input parameter received at a second input to the feedback circuit, wherein the input parameter controls a logic circuit of the feedback circuit to output one of a plurality of reference voltages for controlling an amount of voltage delivered via the PFC output;
• and
• a light source configured to, using the supply power during the second portion of the time interval, emit light at a target intensity,
• wherein the input power received during the second portion of the time interval is insufficient for the light source to emit the light at the target intensity.

A system for supplying power to a load, comprising:

• a power converter configured to convert an input power received from a power source to a supply power, wherein the power converter comprises:
• a first power control module configured to receive the input power from the power source and to output a first adjustable power;
• a second power control module configured to receive the first adjustable power and to output a second adjustable power;
• and
• a third power control module configured to receive the first adjustable power and the second adjustable power and to output a third adjustable power as the supply power;
• a feedback module electrically coupled to the first power control module;
• a sensor configured to sense a condition related to operation of the load;
• and
• a control device configured to:
• receive, from the sensor, a sensor signal indicating an input parameter related to the condition sensed by the sensor;
• and
• based on the sensor signal, communicate a first control signal to the feedback module to cause the first power control module to adjust the first adjustable power.

A light control system, comprising:

• a power converter comprising:
• an input of the power converter configured to receive an input power from a power source during a time interval;
• a power buffer configured to store power using the input power received at the input during a first portion of the time interval;
• an output configured to output a supply power during a second portion of the time interval, wherein the supply power comprises a combination of power from (i) the input power received at the input during the second portion of the time interval and (ii) the power stored in the power buffer during the first portion of the time interval;
• and
• a power factor corrector (PFC) between the input of the power converter and the output of the power converter, wherein the PFC is configured to adjust an electrical parameter of the supply power based on an input parameter;
• and
• a light source configured to, using the supply power during the second portion of the time interval, emit light at a target intensity;
• a first trigger sensor configured to measure an amount of power stored in the power buffer;
• a second trigger sensor configured to sense an occupancy of an environment in which the light source emits the light;
• and
• a control device in communication with the first trigger sensor and the second trigger sensor, wherein the control device is configured to:
• responsive to a trigger-sensor signal received from the first trigger sensor, initiate a process to cause the light source to activate;
• and
• responsive to an override signal received from the second trigger sensor during the process, terminate the process for activating the light source,
• wherein the input power received during the second portion of the time interval is insufficient for the light source to emit the light at the target intensity.