In this training video, parasitics in the gate driver system is identified. Piece-wise linear switching sequence at turn on/off is illustrated. Reverse recovery introduced additional complexity on turn-on transition is explained with comparison of MOSFETs and IGBTs.
In this training video, soft switching ZVS converters, including totem-pole PFC and LLC resonant converter, is mentioned to improve all the all the issues of hard-switching, especially the reverse recovery of the diode. Differences of gate driver on hard-switching and soft-switching is highlighted and explained. New issues of soft switching, high turn-off current, is also discussed with strong gate driver to minimize the turn-off loss. LLC resonant converter turn-off loss mechanism is illustrated in depth.
This training video discusses the strong gate driver introduced high dv/dt and di/dt during turn-on and turn-off switching transition, and also illustrate the high dv/dt and di/dt introduced noise through the parasitic capacitance/inductance on high side level-shift and junction capacitance on the bootstrap diode. Solutions with new state-of-the-art gate driver and its key features are introduced and explained.
This training video summarizes the content of this gate driver series and the key references.
In this training series, we will touch the gate driver applications, fundamentals of low side gate driver, high- and low side gate driver and isolated gate driver. And we will surely go deep and help you understand the gate driver design considerations with TI reference design and the corresponding critical waveforms.
Power Switching Device Cannot Drive Themselves - Mastering the Art of High Voltage Gate Driver Design in UPS, Telecom, and Servers
We live in a world where designers are constantly pursuing higher efficiencies and higher power densities. Our customers want more power out with less power loss, while achieving smaller solution sizes! They strive to reduce switching losses while maintaining signal integrity. The need for higher efficiency and power density is a trend seen across isolated and non-isolated power systems in Uninterruptible Power Supplies (UPS), Telecom Rectifiers, and Server PSUs.