| 摘要 |
Techniques are disclosed to control a current through a load to be coupled to an output of a power converter. In one aspect, a power converter includes an energy transfer element coupled between an input of the power converter and an output of the power converter. A power converter controller is coupled to the energy transfer element to control a transfer of energy from an input of the power converter to the output of the power converter. A current source is coupled to the output of the power converter. A switch is coupled to the current source and is coupled to be switched on and off at a duty cycle to control an average current in a load to be coupled to the output of the power converter.
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