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    are these pins shorted????

    HI guys! well! im using the IC CM8870 in a telephonic project. I made some circuit, in which this IC was not working properly, i checked my connections and i found that pin 8 and pin 9 of this IC are shorted internally. I checked its block diagram (given below) and dint find any reason for that.
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    Relay Switching Problem

    Hi audiguru! yeah its working with ur COM suggestion.
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    Relay Switching Problem

    Hi guys! well! im using a 6V double throw relay. It is NORMALLY CLOSED (NC). Now what is happening actually that when i use it openly, it switches properly. But when i connect the load to be switched, like im connecting a 220ohms resistor, then it only connects that terminal of the relay which...
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    urgent!help please?

    HI Mr. R2 well! first u have to give us more information about the Hbridge u r trying to use. Is it using BJTs or MOSFETs ????????????????? ???
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    excess-3

    Assalamoalaikum Fasieh! first of all! please try to avoid useless words in ur post like you guys are genius etc. Keep ur question to the point and in the brief amount of words only. People here are more interested in replying ur QUESTION then to get happy with ur words. Now lets get back to ur...
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    Download Elektor Journal Here...

    please provide any link for the Elektor July 2006 issue! i shall be thankful to u for this!
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    need these software

    hahahahaa nice one doctor ! superb advice!
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    Want to power up my programmer

    thanks zeppelin! now tell me one thing! if i measure the output voltage of an adapter, and i found it to be 17VDC. then may i use it then??? what is the max voltage input i can give to the circuit???
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    Want to power up my programmer

    Hi guys! sorry for late replying, actually my net was havign some problems. First of all, im very thankful to All of u for taking interest in my question and providing me lots of precious replies. There have been some questions which are asked to me in return. I would like to answer them...
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    Want to power up my programmer

    for full version plz visit this Hi guys! i want to build a simple PIC programmer that requires 13.5 V. This can be to about 14-16V. And it also needs regulated +5V at some of its pins. The diagram above shown is the power supply setup used for this programmer. There are two power solutions...
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    two books

    These two books are: 1) Analog Interfacing to Embeded Microprocessors 2) Computer Buses
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    two books

    both of these books are just classy ! thanks a lot Mugsby
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    12V to 24V DC to DC converter required...

    hi guys! well i want to run a motor that will be requiring 24V DC. I have a battery which is 12V DC and 7.6Ah. I want to convert this 12V to 24V in order to run my DC motor. What IC should i use or what method should i follow. If you are giving me any solution then please keep this thing in the...
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    using MOSFET driver IC in a circuit!

    okz there is a bit info i forgot to draw in my H-bridge diagram and that is. With every P-channel MOSFET there is a 10K resistor connected between its gate and Vcc. and with every N-channle MOsfet, there is a 10K resistor connected between its gate and Ground. Please explain me the logic behind...
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    using MOSFET driver IC in a circuit!

    Hi guys! well im building an H-bridge circuit for driving my powerful 12V 5A motor. Im using the following block diagram for my circuit: Okz now, Im using IRF9540 as P-channel and IRF540 as N-channel. what i have seen that P channle gets on when we apply 0V to its gate and it gets off when...
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    H-bridge Help required urgently

    Hi guys! well! i was getting a bit off topic according to the theme of the datasheet and part request forum so i better start the topic here now. Guys! im facing a huge terrible problem in H-bridge circuits. and i donot know what to do with it. Actually, i want to run a DC Motor with my...
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    H-Bridge COmplementary Transistors--Plz help in selecting them

    Hi audioguru! thanks a lot for ur help. Now u see, i forgot to tell u about a bit update that im using the following circuit. Now here u can see that sources of P-channel Mosfets are connected with 12V and drains with the motor. But again im facing the very same problem that motor is not...
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    H-Bridge COmplementary Transistors--Plz help in selecting them

    Hi guys! well! i tried to implement the above circuit on my breadboard. One problemt hat im facing here is this that my LEft IRF540(n-channel)  and Left IRF9540(p-channel) is getting very hot while the right transistors are both cool. And the motor is just not running. What might be the cause...
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    H-Bridge COmplementary Transistors--Plz help in selecting them

    One more thing that i want to ask here along with my previous questions is this that: IF I USE MOSFET DRIVERS LIKE TC4424 OR TC4420 THEN DOES IT WILL IMPROVE THE PERFORMANCE. IF YES? THEN WHAT ADDITTION AND SUBTRACTION IN THE ABOVE CIRCUIT DO I HAVE TO MAKE? One more thing that i want to ask...
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    H-Bridge COmplementary Transistors--Plz help in selecting them

    one more thing audio guru. dont u think that in the above diagram, there should be a 10K resistor on the right side of the left P channel Mosfet and there shoud be a 1K resistor with the left N-channel Mosfet? plz tell me that what is the correct choice? thanks
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