Patent ID: 7463009
Filing Date: 2008-12-09
Classification: H01M,H02J,Y02E

Abstract:
1. A hybrid battery module with a voltage balancing unit, comprising: a first cell set; a first programmable fuse, with a first end coupled to said first cell set; a first discharging switch, with a source coupled to a second end of said first programmable fuse; a first charging switch, with a drain coupled to a drain of said first discharging switch; a first analog front end circuit, being respectively coupled to a gate of said first discharging switch and a gate of said first charging switch, for detecting a voltage or a current of said first cell set in order to control ON and OFF of said first discharging switch and said first charging switch; a first thermister, with an end coupled to a ground, for detecting a temperature of said first cell set; a second cell set; a second programmable fuse, with a first end coupled to said second cell set; a second discharging switch, with a source coupled to a second end of said second programmable fuse; a second charging switch, with a drain coupled to a drain of said second discharging switch; a second analog front end circuit, respectively coupled to a gate of said second discharging switch and a gate of said second charging switch, for detecting a voltage or a current of said second cell set in order to control ON and OFF of said second discharging switch and said second charging switch; a second thermister, with an end coupled to a ground, for detecting a temperature of said second cell set; a controller, being respectively coupled to another end of said first thermister, a control terminal of said first programmable fuse, another end of said second thermister, and a control terminal of said second programmable fuse; and a voltage balancing unit, being respectively coupled to said controller, said first charging switch, said first discharging switch, said second charging switch and said second discharging switch; such that said first cell set and said second cell set can be discharged by said voltage balancing unit, so as to reach a goal of voltage balance.