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pwm capture msp430
Thanks all for the advice.
at this moment I'm looking at PIC microcontroller solutions since the projects involve several other modules that use this microcontroller. I'll try the other options after the PIC.
Thanks VVV for the link.
shma
capture pwm
Hi,
Anybody knows how to write a code for PIC microcontroller that can read/capture pwm signal and give output according to the pwm ?
The pwm signal is coming from a sensor. I want to program the PIC microcontroller to read this pwm signal and will give the output to other...
aryajur,
thanks for your reply, I'll try to design this system and I'll see the outcome. I'll check, how big capacitor I'll need to maintain the power for about 5 sec. My target is to have as small as possible design.
Added after 43 minutes:
IanP,
thanks for your info. but I think...
aryajur,
I have one question abt your approach. if I'm not mistaken, boost-buck converter will convert to higher voltage. we design the boost-buck converter with a componenet specification to match certain criteria, for example to convert the voltage from +5V to +20V, but for a design where we...
hi all,
thanks for the replies.
aryajur,
do you mean that I need to used capacitor together with buck-boost converter circuit ? So this mean , the capacitor will store the charge from the car battery and then act as the input to the buck-boost converter when the battery is dead. am my...
aryajur,
thanks for your reply. The system only need to supply the voltage for about 1 minute only. Not that long since the airbag activation is done in less than that. The backup system must supply voltage to the microcontroller, gate driver, power mosfet and accelerometer.
can you explain...
Hi,
Currently I'm doing a project to design an air-bag controller system. There are accelerometer, microcontroller, gate driver and power mosfet in the system.
Now, I want to design power backup unit for the system, so if the main supply (from the car battery) is broken, the airbag system...
ir2117 orcad
yea, I've tried to change and play around with the settings and its true that this convergence problem give me a headache. however I still can solve the convergence problem.
If I'm not mistake this convergence problem is so popular with Pspice but not that bad in other spice...
import pspice model into proteus
Hi,
Thanks for your help.
Unfortunately, the Proteus version that I got doesnt have the advance simulation feature.
so I think, that is why I can open .dsn file in my Proteus.
Thanks.
proteus import
Hi,
I would like to know how to import pspice model into proteus so that I can simulate the part with microcontroller.
if I'm not mistaken, proteus is using berkely pspice engine, so I think it should be able to import pspice model.
lm5106 gate driver spice model
haa, I'm happy now, thanks all for your help.
Now I can simulate the gate driver. I used IR2106 since this device input is 2.9 Min for VIH and 0.8 Max for VIN.
Thanks to IanP for highlighting the mistake in the Vin voltage and for the remark on Vs pin.
Now it...
pspice gate driver
Actually, I've tried to use 10V as the Vin , but I got convergence problem from the spice simulator. so maybe I have to change some component value like capacitor or inductor. Is it right ?
I'll try again and will inform you later.
thanks for your help.
ir2117 boost
hi,
I'm sorry, maybe I dont really understand. Do you mean the input must 9.5V (max) and 6.0V Min ? but the output from microcontroller for example is only 3.3V (max) right for logic `1' ?
.. and I think the purpose of gate driver is to drive a power mosfet since the output from...
gate driver spice
Please !, I dont know what is wrong with my circuit and I cant understand the function of the gate driver.
Here, I test with high side gate driver and I attached power mosfet to the gate driver output. but still the output of the gate driver (HO) is very very low. I dont know...
irf drver simulation
According to the datasheet, Vs is the High side floating supply. Yup, Vs is connected to the source of the Mosfet but, how if I want to try simulate the gate driver only ? wht should I do with the Vs pin. I've tried connect the pin to load resistor - no different and I've...
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