Patent ID: 7038333
Filing Date: 2006-05-02
Classification: H02J

Abstract:
1. A hybrid power supply comprises: a switching type DC/DC boost type converter that receives energy from a primary cell with the primary cell being an alkaline cell, Zn-air cell, fuel cell, solar cell, or another current limited DC power source, and is arranged to deliver the energy to a rechargeable cell with the rechargeable cell being an Li− Ion or Li− Polymer rechargeable cell; a circuit disposed to control the switching type DC/DC converter, the circuit comprising: a resistor voltage divider coupled a feedback input of the DC/DC converter, the resistor voltage divider having a resistor voltage divider ratio selected to provide a voltage at the feedback input, to control the DC/DC converter to provide an output voltage that is less than the full charge voltage of the rechargeable cell.