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  1. R

    oscillator selecting and finding problem in my circuit

    sir as you have said that it is a hartley oscillator,I could not find any hartley oscillator like this in the internet and in my book ?so I am unable to understand the operation ?can you please tell me the operation in more detail?Thank you a lot.
  2. R

    oscillator selecting and finding problem in my circuit

    Thanks a lot and sorry for the inconvenience with the size of the figure.I have a confusion about how the transistor performing the switching purpose and giving the oscillation?
  3. R

    oscillator selecting and finding problem in my circuit

    I am a undergrad student.I have a problem with a oscillator circuit.I have found a oscillator circuit from net and using it as a oscillator in my circuit.But my problem is that i could not find that what type of oscillator it is and what is it's operation?It would be helpful for me if someone...
  4. R

    power amplifier circuit

    I am doing a project .For this project I need a power amplifier which will work at about 1Mhz.Can anyone please suggest me schematic of a power amplifier?
  5. R

    amplifier circuit help

    actually the coil from the 30v to the MOSFET IS A CHOKE COIL.Actually I am working with wireless power transfer.It is th e primary coil.
  6. R

    amplifier circuit help

    I am working with this amplifier circuit attached .When I am giving supply to the circuit my mosfet is getting hot and burning out.Someone can you please suggest me solution for this.hank you so much.
  7. R

    wireless power transmission simulation help.

    I want to simulate wireless power transmission.But I am new.pleae someone suggest me how to approach?
  8. R

    current rate for charging

    actually i mean by sacrificing of voltage that i want to get more current like you said 350ma is needed by sacrificing the extra voltage as i need 5 v to charge?i know if i connect 7805 it will give 5v? please suggest me a way to increase current?thank u? - - - Updated - - - - - - Updated -...
  9. R

    problem with mosfet amplifier circuit

    yes i geeting that required current .now i am giving the 2mhz signal from a signal generator .it is not working ? what can i do and what could be the problem?
  10. R

    current rate for charging

    I have a source of about 10v and with a resistance load of 0.5 ohm i am getting current of about 200ma.Can I charge a mobile with it? if this current is not enough then please suggest me a way to increase current as i can sacrifice about 4v to get that current because i need 5 v to charge a mobile?
  11. R

    problem with mosfet amplifier circuit

    I have a problem with my amplifier circuit.My input to gate of mosfet is 2Mhz from microcontroller and bias voltage is 30v.when I measure voltage at the terminal of the dc blockin capacitor as i have given in the following picture it shows voltage low close to zero and the frequency about 300...
  12. R

    Full wave bridge rectifier by schottky diode

    I can't get you .can you please tell in detail that what does mean by ,"but found it strange that it is almost impossible to find a schottky bridge in one case."
  13. R

    Full wave bridge rectifier by schottky diode

    I want to make a full wave bridge rectifier by schottky diode.Will the diagram be same as normal diode or will there be any change?I have not worked with schottky diode before that's why asking..
  14. R

    current rate problem

    I am doing a project on wireless power transfer.In that I am giving a signal of frequency 2Mhz and in my secondary a voltage is being induced at frequency 2MHZ.And the induced voltage in ac is about 7-8 v and current is 1 A.After rectification with this diode 1N4007 full bridge current is...
  15. R

    current rate problem

    I am trying to convert a ac signal of voltage 7v and about 1A current.when i convert it to dc by full bridge rectifier of general diode 1N4007 .The problem is after converting it into dc voltage is about 5-6v but the current is so low about 10ma.what is the problem.please help me someone.
  16. R

    Output of crystal oscillator.

    what had you did with this signal?
  17. R

    inductance calculation

    now i am confused which on is magnetic core and which on is air core?please somebody make it clear? in my case i need a circular coil to make a high frequency about 2mhz LC resonator ? - - - Updated - - - albbg .. yes my one is a air core inductor.but you have given the formula for...
  18. R

    inductance calculation

    what is the accurate formula to calculate inductance of circular coil?i am using the formula given below but my inductance is not being accurate as i am trying to make resonance with lc circuit?
  19. R

    555 timer frequency problem

    you said that it is difficult to generate 2 mhz.but your parameter gives 3.137 mhz.will it be stable and good working.

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