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Dear Dick,
Can u give the details IC numbers of Purpose-made Level shifting inverters/buffer
Presently i am using 74LS04.
Also can u suggest me good material (Books or Notes) on Understanding how to connect different Logic families.
I want to convert the output from DSP TMS 320F2812 (3.6V) to compatible with TLP250 (+5v)
what Digital IC family to be used as buffer either 74LS of 74HCT also tell me what is the difference between both?
I connected 74HCT04 my +5V power supply heatup
I have conncected the output from single phase SPWM inverter to a single phase transformer of 1:1 turns ratio.
And the secondary voltage I am getting more than primary voltage (i.e) I am getting a boost.
How could it is possible, since due to lekage inductance of transformer the secondary...
I am using single phase full bridge unipolar SPWM.
Also I measured the voltage between collector and emitter it gave me 0.5 of DC bus voltage not the drop across it.
Then what about gate voltage? I have initially used +15V for supplying gate. today I changed to +18V around 10V output is...
DSP Program is correct since upto DC bus voltage of 150V output is coming correctly. only higher DC bus voltage problem exists.
Can you tell me how to measure forward voltage drop of switch.
Is more gate charge (current) for higher Vce required for IGBT?
Please provide suggestion.
- - -...
Thank you for your reply.
The drop across the device is typical:2V and max is 3.6V as per data sheet. while testing I didn't checked this but.
Surely my input voltage is greater than Vge(th) since between DSP i have connected one buffer and Optocoupler(TLP 250). Optocoupler output is 15V when...
Hello!!!.
Presently I am working in Single phase inverter for my mini project.
I am Using IRG4PH50UD IGBT from IRF and IR2111(Half bridge with fixed dead time) as driver.
The DC Bus to be operated is 460V.
Upto 150V of DC bus the Output voltage is coming close to theoretical value. But...
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