| 摘要 |
<p>A charge pump power converter efficiently provides electrical power by dynamically controlling a switch matrix of the charge pump. Instead of open loop oscillator based control, a dynamic controller provides power upon demand by sensing the output voltage and changing the operating frequency of the charge pump in response. Moreover, this closed loop dynamic control intrinsically voltage regulates the output voltage of the charge pump power converter without the inefficient addition of a step down voltage regulator, downstream of the power converter. In addition, this closed loop dynamic control allows for maintaining a desired output voltage even with variations in the input voltage. Also, the dynamic control accommodates the advantages of using ultra capacitors in the charge pump. The power converter is capable of operating with a sub one volt input voltage incorporating low threshold, low on resistance power MOSFET switches in the switch matrix of the charge pump. A progressive start up circuit further allows the power converter to start from a discharged state even with a sub one volt input voltage.</p> |
