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Text version of the page
| International iôr Rectifier | ||||||||||||||||||
| APPLICATION NOTE | ||||||||||||||||||
| Application Note AN-978 | ||||||||||||||||||
| HV Floating MOS-Gate Driver ICs Table of Contents Page Gate Drive Requirements of High Side Drivers....................................1 Typical Block Diagram.........................................................................2 How to Select the Bootstrap Components...........................................4 How to Calculate the Power Dissipation in an MGD............................5 How to Deal with Negative Transients on the VS Pin...........................7 Layout and Other General Guidelines..................................................9 How to Boost Gate Drive Current to Drive Modules.............................11 How to Calculate Provide a Continuous Gate Drive.............................13 How to Generate a Negative Gate Bias...............................................14 How to Drive a Buck Converter............................................................16 Dual Forward Converter and Switched Reluctance Motor Drives........18 Full-Bridge with Current Motor Control.................................................18 Brushless and Induction Motor Drive...................................................20 Push Pull..............................................................................................21 High-Side P-Channel...........................................................................21 Thyristor Gate Drive.............................................................................22 Troubleshooting Guidelines..................................................................22 | ||||||||||||||||||
| International Rectifier's family of MOS-gate drivers (MGDs) integrate most of the functions required to drive one high side and one low side power MOSFET or IGBT in a compact, high performance package. With the addition of few components, they provide very fast switching speeds, as shown in Table II for the IR2110, and low power dissipation. They can operate on the bootstrap principle or with a floating power supply. Used in the bootstrap mode, they can operate in most applications from frequencies in the tens of Hz up to hundreds of kHz. | ||||||||||||||||||
| AN-978 | ||||||||||||||||||
| www.irf.com | ||||||||||||||||||
| cover | ||||||||||||||||||