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My understanding for pull down resistor is a fail-safe mechanism. I personally place it not after gate resistor, but before. If the driver burns up, without any short-circuited outputs, pull down makes sure the gate is turned off. Oherwise parasitics may turn on gate.
DRVOUT---/\/\/\/\----gate...
Here is the schematic. The configuration is exactly same with the schematic given with the model files. I have changed components to meet my design settings.
Here Vout is required to be at least 24 (Output voltage divider is much higher in the schematic for test purpose only)
I will post the design tomorrow hopefully.
The fact is that, it does not even go upto 50%. I thought it is due to the Rt/Ct ratio (which also limits max. duty cycle) but even if i try the values given in datasheet, it does not give 1:2 output.
Having read the related posts, i tried a similar...
This is a bit old thread but there seems one thing problematic: UC3842 datasheet says that duty cycle limit for the device is about 98% under given operating conditions Rt = 10k and Ct = 3n3. However the model does not output a pulse width as stated. It is limited much below and i cannot manage...
Hi,
I'm trying to interface a fuelcell module with a pic16f877a but i have trouble in converting data.
the manual says data is represented with 4 bytes, a floating number representation.
1 bit sign + 8 bit exponent + 23 bit mantissa
4. byte | 3. byte | 2. byte | 1. byte
decimal eq =...
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