|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 26 인용 특허 : 4|
This invention includes a trickle charging circuit that works with a series charging element to charge battery cells with a low, constant current when the voltage of the cell is below a predetermined operational range. The trickle charging circuit includes a control transistor that is actuated by a current source when both the power supply and undervoltage battery cell are coupled. The trickle charging continues until a minimum operational voltage of the cell is reached. The invention includes a means for rapid charging the cell once the cell voltage is ...
1. A circuit for trickle charging a rechargeable battery cell, the circuit comprising:a. at least one rechargeable battery cell; b. at least one power source; c. at least one pass element coupled serially between the at least one rechargeable battery cell and the at least one power source; d. a control transistor having a control node, the control transistor being coupled to the at least one pass element; e. a means for sourcing current coupled to the control node; f. a means for generating a voltage in response to the means of sensing current coupled to...