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Hi All,
I want to change EEPROM data in my project with MPLAB v2.26, but I couldn't do that. Just shown "Release build disabled" I have changed EEPROM data prior MPLAB v8.92 so easily.
How can I change data in the eeprom?
More detail please look at the image.
Best regards,Mehmet..
I have bought eval board which was STM32100E-EVAL.
Could you please advice me how to connect Eval board to PC?
---Which ARM compiler I have to use? (Keil or e.q)?
---How to programmer EVAL board?
Could you help me If someone use this eval board?
I just want to see on the LCD screen ":Hello...
Dear Brain,
Thank you so much, I really appreciated.
I have to do more practice. I have many BC547 in my hand. I just want to know how to use this transistor's datasheet.
What is meaning of Vceo, Vcbo, Vc(sat), Vbe(sat)? If I can find out how to use these parameters, I think I will know all...
Dear Brain,
Could you please give me some advise about electronic for beginner level?
I think it is the best to make more practices to gain more experience.
And you can also give me some electronics magazine, website that it should be include lots of circuit example.
I'd like thank you in...
As shown on the figure below,
"Sender" output should be around 130rms/80Hz. I have tried frequency modulation with PWM to get sine wave but I couldn't
In the below picture I have also added my exact project
For my circuit,
Transfer ratin raito 1:15
L1,C16 and C17 for modulation
When I...
Dear Brain,
I have changed my project. I used DC-DC converter (ST 34063- step down with external PNP switch). I have achieved to see signal secondary side but not AC. I saw around 400V DC with my multimeter but I have never seen AC value.
Could you give me some filter to get around 80Hz?
I...
Thank you Audioguru,
I have added my last circuit with RC low pas filter in the following photo below,
I have also confused which way is better to use filter on secondary side or primary side.
Thank you,
Mehmet
yes, I have burned lots of BDX53C when I used. I have also used RC filter which was low pass filter, (fc=80Hz, R: 2k, C:1uF) but the problem was that when I applied any load on the circuit, the voltage amplitude was so reduce although our load was just 1.5W
And our circuit must draw just 70mA...
No, I never catch up with you :)) You have many experience. :))
Btw, I'm working on piezoelectric sensor and I need sine wave to get vibration from piezo. This circuit will help me
Thank you so much for your kind support.
All the best,
Mehmet
Hi Mr Brain,
Thank you so much. I really appreciate it.
I have added zener diode as your reference. I hope it is true. (I have also added circuit diagram)
I really want to learn power electronic like you :)
Thank you again,
Mehmet
Thank you so much Mr Brian. It helps me for solving too much unknown.
And I just want last things.
Could you please draw a simple circuit with resistor for this?
If you can do I would be happy.
Thank you so much in advance
Mehmet.
hi bowman1710,
No, I haven't. I think my darlington transistor could not drive. Or I have not giving enough voltage to the mosfet.
I just want to know how can I use its datasheet for driver, breakdown, e.t
Thank you,
Mehmet
hi Brain,
Thank you for prompt reply,
1. How can I know giving enough voltage to drive it. In its datasheet which parameter is driving voltage (Vceo, Vce ??)
2.Means that I have to give the voltage under the 45V?
3. The frequency is 250Hz. (The PWM output frequency is 250Hz)
Thank you,
Mehmet
Hi all,
I have tried many times to create AC signal with PWM and I have used transformer to increase the signal at 120 Vpp but I never didn't.
I can't send the signal across the secondary side to see 120 Vpp. (Turn ratio 1:30)
Could you help me please?
Thank you for kind message milan,
But I don't want to use any gate due to cost increase and harmonics. And also I want to change both amplitude and frequency as changing PWM code.
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