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1139 Results

UCC21520 – Turn-Off with Negative Voltage

This training video will help to understand the UCC2152x's output configuration and grounding consideration when driving FETs and IGBTs with negative voltage bias. Three different implementation methods are introduced, pros and cons of each methods are illustrated.

Gate Driver Design Deep Dive

Gate driver design deep dive outline:

-Parasitics in gate driver-Gate driver soft/hard switching difference-Strong gate driver and MOSFET nonlinear COSS-Common mode transient immunity(CMTI), dV/dt and di/dt through parasitics L, and C?-How to separate power ground noise by PCB layout?-Power supply for isolated gate driver in UPS, server and Telecom system-TIDA and Experimental waveforms

Parasics and its Influences at Hard-Switching

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.

Must Knows of Gate Driver for ZVS Converter

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.

Gate Driver Operation with High dV/dt and di/dt

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.

Summary and References

This training video summarizes the content of this gate driver series and the key references.

Introduction and Agenda

This section will cover the introduction and agenda for this 21 part training series. 

Market Challenges

This section will cover the market challenges to consider when choosing your DC/DC solution

Control Mode Comparision

This section will cover compare the 3 different control mode chosen

Product Comparison

This section will compare the 3 different products used

Topology Comparison

This section will compare the 2 different topologies chosen for this comparison

Design Parameters

This section will review the design parameters used

Switching Frequency Considerations

This section will cover issue to consider when choosing your switching frequency

Inductor Selection

This section will cover thing to consider when choosing your output inductor

Output Capacitor Selection

This section will cover thing to consider when choosing your output capacitor

Series Capacitor Selection

This section will cover the selection of the series capacitor for the TPS54A20

Capacitor self heating

This section will cover the effect of capacitor self heating on your DCDC design.

Compensation network selection for the TPS54824

This section will cover selection of the compensation components for the TPS54824

Solution Comparison

This section will compare the schematics and components chosen for the 3 solutions used in this comparis

Closed Loop Analysis

This section will compare the closed loop analysis of the 3 different solutions.

1139 Results
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