gauri_22480

can I drive mosfet bridge (H bridge) using 555 timer ? how? I know ......we can give triggering pulses to mosfet using microprocessor......or using some IC ......... but because of some problems I don't want to use microprocessor or any specific IC ....... so do let me know is there any other method to give triggering pulses to mosfet bridge.

hello, I just wanted to know if somebody could suggest me a way to convert a square wave to a sine wave with same frequency ? Just like you can convert it to triangle wave with a op. Amp. mounted as an intergrator. Thanks in advance for any suggestion.

hey guys........let me know can we simulate ferrite core transformer or high frequency transformer? If yes .......can we use pspice for simulation? plz help................. :-[

hey guys........let me know can we simulate ferrite core transformer or high frequency transformer? If yes .......can we use pspice for simulation? plz help..........I am newbee......... :'(

sir I have made some modifications again ........have a look at it.......... now what u think about waveforms ? Is this okay? or still some thing is wrong?

hey.................I got the solution............ ..thank you very much for your timely help.........

output of integrator is also square wave of 5 v , 50 hz ...... ??? ???

hey thanx for your quick reply.........here I am using JK flipflop as frequencydivider........JK flip flop is in toggle mode............ can I use R-C integrator instead of op amp integrator? I made necessary correction suggested by u but still not getting triangular output from integrator...... :-[

hello herewith I am attaching circuit diag ....plz go through it......output of JK flip flop is given to integrator......here I want integrator to obtain triangular waveform fron square waveform ........but I am not getting expected results.........this integrator is not giving me triangular waveform........whats wrong with this integrator........here out put of JK flip flop is square waveform of 5 v , 50 H z........ here actually I am designing control circuit for boost converter..........so finally this integrator output will get compared with ref value ...using comparator .......accordingly will give switching pulses to switch(transistor/mosfet/igbt) of boost converter plz help........any details related to triggering circuit for chopper or control circuit for boost converter or active current waveshapping techniques will be appreciated.

can any one tell me what is active current wavshapping technique? how it works?.......its circuit diag........... or control circuit for boost converter or triggering circuiit for chopper

plz help me .I am in big trouble......I want square pulses of 100 khz frequency ........I have connected timer 555 properly but its not giving me expected output........what shoul I do?