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Hi RIMSHIV,
I have seen all the circuits which the members have posted here. The last ciruit is quiet good and i dont know whether it would be accepted as a final year project or not.
There are many ways to build a such security system. One is the circuit posted here. Second by using DTMF...
I didnt understand the IDENTIFY meaning. whether u want microcontroller with 28-pins or something else.
If u r searching for 28-pin microcontrollers then in PIC, PIC16F873A, PIC16F876A are 28-pin microcontroller. These controller have 3-ports A, B and C. port-A is 6-bit, B and C are 8-bit...
Re: DB-9 Interface
I think u cannot interface 3110 directly to PC using DB9 because the four pins in 3110 are USB interface. U can interface it with PC using USB port. But If u still want to interface it with serial port of PC then u have to use USB to serial converter.
OR
Use any other...
Abdullah the image posted is complete. If your circuit is not working then might be there is some problem with your circuit. The schematic which i have posted is taken from datasheet of LM2576 and its 100% working.
It you want switch mode supply then use LM2575-5.0 or LM2576-5.0 which is a 5V fixed regulator. And if u want linear type then LM7805 would be best. But switching regulators have far more advantages then linear one.
Plz see the schematic.
Yes u r right. Now i am designing a circuit which is totally microcontroller based. That controller will generate PWM, sense charging AC voltage, generated AC voltage, voltmeter for AC and DC and many more options. Soon i will discuss the schematic with you.
For overload protection, i think...
Hi,
I think this error is due to TMOD mistake, D is erased. Its not TMO, its TMOD, timer mode register. And its alphbet 'O' no zero.
Added after 3 minutes:
Or send me your code so that i make corrections in it.
Hi,
@ MVS SHARMA - You are right but problem is that high rating mosfets are usually not available in my area and if available then they are so much costly. IRF3205 is available, its Id is 110A but problem is with Vds which is just 55V which is quiet near to 48V. Can you suggest any high rating...
Thank you so much for your replies.
OK let me redesign the mosfets driver circuit and check it again.May be the problem is with 4047 ic or the 7667 ic. I let u know by sending the new driver schematic.
One thing to ask is can i use mosfet as a pre-driver to drive these 2 sets of parallel...
yes i am using two ICs of ICL7667. each IC has two mosfets drivers. i have shorted the two drivers of each IC to drive 12 mosfets. so both the ICs with two drivers in parallel are driving 24 mosfets IRF640N.
Added after 4 minutes:
This happend to me twice that same side of MOSFETs have...
Hi,
I have designed 5KVA inverter which is using 4 batteries in series giving 48V. I am using IRF640N mosfet which is 18A mosfet. My transformer is 48-0-48 so i have used 12 mosfets in parallel at one side so i am using 24 mosfets in total. But when i check my inverter on small transformer its...
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