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Hi!
Thank You all for the reply. In the application of IR2110, the low frequency was, so far, the limiting factor because of bootstraping capacitor. Due the fact that this is the testing circuit, I've searched the P channel 500V / 20A power mosfets - and found this one IXTH20P50P-ND. It's not...
Hi!
I need to design a high voltage high side MOSFET switch configuration, using n-channel IRFP460. Type of load is inductive (0,3H - 0,5H). Switching frequency is variable - in a range of 100Hz - 4kHZ. Is there a possibility to drive the gate of this MOSFET with IR2110? If it is, how should be...
To all members who could help me with assignment,
Hello! I'm pretty unexperienced in SCR/thyristor/GTO thyristor circuit design... :sad: Although, two days ago I've got an assignment to design the 3 phase 6 pulse AC-DC 400V/400A circuit, with one of upper mentioned switching elements. The...
Thanks guys! Answers were truly helpful!
I have another situation - isolating power electronic circuit from control electronic (PIC18F). I have 4 optocouplers 6N136, 6N137, 6N138, and 6N139 as choise. Little confusing fact that I'm not completely informed about is output type - TTL/TTL...
Greetings to you all!
I've been away from field of electronics for a while :) Now, for a man like me, some things are quite muddy :) Here is a problem - I want to make some sort of flyback converter (closely said). I'm wobbling about Mosfet IRFP460 variable switching speed (1 - 20kHz). Is the...
Problem solved :), thank's guys for all suggestion, and comments. Mistake that i made was that inputs weren't connected to supply voltage, so measured voltage was floating, thus nothing, (or something :D) gained up. When I did a simulation, both ends of shunt resistor, and transducer were...
for the negative voltage - no, i'm using battery voltage of 12V stabilized to 10V, to eliminate the possibility of oscillation... Now i have a new problem which is same type - when trying to gain up the signal from voltage devider 21V/0.1V and then 0.1V to 5V with ordinary opamp gain is ok and...
instrumentation amplifier schematics
When you asked if there is any connection that is not drawn, yes there is, 2.5V is supplied from voltage devider, 10V devided by 4700Ohm and resistance from potentiometer (about 17KOhm)... if that means something... I cant send any information about signals...
instrumentation amplifier oscillation
No, except 2.5V, which i didn't draw... but it's all drawn as it is. Simply the gain extremly falls down. I was reading about source impedance vs. load impedance, but even after that still doesn't work as it should. Whatever i tried, gain can't be more than...
gain of instrumentation operational amplifier
thanks, i didn't know how to attach the picture so it could be visible - i'm new in this forum :D
Do you have any suggestion, how to fix the problem? Whatever i did gain is fixed around 10... :(
instrumentation amplifier
I'm trying to connect opamp and inamp like on schematic attached, but the gain of the instrum. amplifier falls down. When a source of stabilized voltage is connected with instr. amp. instead of LEM transducer, everything works fine. What's the problem?
1 sec delay in pic assembly pic 16f887
I'm trying to connect opamp and inamp like on schematic attached, but the gain of the instrum. amplifier falls down. When a source of stabilized voltage is connected with instr. amp. instead of LEM transducer, everything works fine. What's the problem?
pic16f777+pwm+forum
Hi!
I'm replying a little bit late, but if you haven't done the project, you should pay attention to sensitivity of the potentiometer, 'cause they can be unstable - voltage can vary in 0.01 - 0.02 up and down...
Next, if i'm right pwm must be set up correctly, period must...
adc in mplab
Hi
You should use stimulus. Detailed manual is available on Microchip's website, look at the page 291, at MPLAB_User_Guide_IDE&EDITOR.pdf
here's the link, for on-line help
**broken link removed**
You can look at the help too, under topic "mplab ide"
16f887 adc problem
I'm running the circuit in mikroe easypic board, but it seems that cheap chineese potentiometer is in pretty bad shape. I did generated a time delay, just as you said, about 0.4sec, and everything works fine, until bad segment of potentiometer comes up. Didn't expect...
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