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    MOSFET Gate drive rise time with TC4428 driver

    Hi, I have a TC4428 driving a IXFH12N50F MOSFET. Supply is 12V DC. I expected to get a pretty good rise time from this, but it seems to be at almost 300ns. If I disconnect the driver from the gate and just measure the output of the IC, it still shows around 300ns. Looking at the data sheet, I...
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    Understanding Safe Operating Area

    Hi, I just want to check if I am understanding the SOA graphs correctly on a datasheet.. The STP30NF10 MOSFET is rated for 100V and 35A. http://www.datasheetcatalog.org/datasheet/stmicroelectronics/7817.pdf The SOA graph shows that the actual current it can pass varies with Vds. Now the graph...
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    Trigger an SCR to switch a negative voltage

    Hi, Just wondering about how to trigger an SCR for discharging a negatively charged capacitor into a coil. I assume the gate must be set at some voltage relative to the cathode voltage. If this is the case, the cathode being at up to -1kV relative to ground would need a transformer right? Is...
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    Please recommend a Good Electronics Book

    Hi, I want to get a good book on electronics. My main interest would be Power Electronics. I'm not a complete beginner, so it doesn't need to cover basics.. I've heard mentions of "The Art Of Electronics" but this was last revised in 1989. I'm hoping for something more modern that would also...
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    Limiting Mains current.

    Hi, I'm making a circuit that in part will charge a capacitor from the mains. When the cap is empty the current would be very large. I want to limit the current to about 1.5A so that the rectifier is not damaged. Should I just use a resistor on the rectifier output, or should I use a capacitor...
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    50V, 50A H-Bridge IC needed

    Hi, I'm looking for an integrated H-Bridge IC like those used in motor control applications. I've seen the VNH3SP30-E (http://www.st.com/stonline/products/literature/ds/12688.pdf) but it is only rated for 36V. The current rating it has of 30A is just enough but ideally I would like something...
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