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Voltage balancing between series-connected cells of rechargeable lithium-ion batteries is important for battery life, autonomy and security. Active balancing is the designated choice for applications that are sensitive to energy losses. A well-known next-to-next balancing technique is presented and its design and operating limitations are analyzed. This paper then presents a new technique for next-to-next...
This paper presents a simple, ultra-compact and isolated gate driver system used to drive power switches. Using two legs of a CMOS inverter, a high frequency transformer and two zener diodes connected with the gate of power switch, this driver provides an optimal gate driver waveform with a high gate voltage to switch on the transistor, and a negative bias gate voltage during OFF state. In the paper,...
Integrating multiple power devices in the same die makes their implementation more simple and reliable. In this paper, a new concept for low cost and high efficiency monolithic integration of 600V vertical power diodes is proposed and experimentally validated. The concept relies on the creation of vertical voltage terminations on the periphery of the devices, thus allowing to terminate and to isolate...
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