10 Threads found on edaboard.com: 555 To Sine Wave
I need help to design circuit with output sinusoidal wave frequency 500kh-1Mhz, and Vpp-200V.
Basically, as far as know, the circuit should have an oscillator, amplifier and filter.
What circuit is the best for producing high freq?
Can I use 555 timer and freq doubler??
Analog Circuit Design :: 11-29-2013 16:31 :: mrmalaysian :: Replies: 10 :: Views: 531
I posted a link to another thread on this forum, in which some sugestions were provide.
However, you can try with that circuit :
Analog Circuit Design :: 01-13-2013 19:52 :: andre_teprom :: Replies: 8 :: Views: 781
How to generate a sine wave of frequency 50Hz +/- 10Hz controllable through a POT?
the amplitude can be +/- 5to12V, duty cycle 50%.
555 and 566 give only +ve wave forms, i need a wave with alternating polarity.
Electronic Elementary Questions :: 12-06-2012 05:46 :: pcsandhya82 :: Replies: 2 :: Views: 563
This design allows you to vary the output level (using R5) and allows you to switch between square wave or sine output. You can easily design the 30kHz clock source with a 555 timer.
Power Electronics :: 11-29-2012 14:54 :: E-design :: Replies: 5 :: Views: 496
This is my voltage stabalizer that I found in one of those old analogue electronics book. Need it for my project and had built it but it didn't work
I also need to use a h-bridge to convert my DC battery to AC sinewave. The circuit used is shown below
I cant seem to get both of em' workin
Power Electronics :: 02-09-2012 14:58 :: psyduck :: Replies: 2 :: Views: 1270
How often do you want your 5 cycles? Do you want the cycles to be switched on at a certain part of the waveform. It looks like pin 3 controls the output level, so link it to V cc with a high value resistor. Then a 555 timer chip can be used as a monostable, if you set its time to (250KHz = 4 microS period X 5) to 20 microseconds to the output of t
Analog Circuit Design :: 03-21-2011 12:45 :: chuckey :: Replies: 2 :: Views: 1175
Just use 555 timer & 4017 to make a quasi sine wave generation to fireup two push pull transistor. Varying the 555 frequency, you can get the different frequency. taking the output from a different tapping of the transformer, you can have different outputs.
Now you can approach in two ways.
1. First boost to regulated (...)
Power Electronics :: 03-18-2010 12:43 :: BADFLOPPY :: Replies: 2 :: Views: 846
the main concern i post this circuit is i want to understand how the output of the circuit can appear as a waveform(sine wave or square wave is not my concern) with a positive and negative cycle.
what is the main factor or process that made the output of the the 555 timer which is a a square (...)
Hobby Circuits and Small Projects Problems :: 11-28-2009 11:19 :: roronoa :: Replies: 2 :: Views: 1802
It should be possible to do this without using a tracking band pass filter, but rather a wideband shaping circuit. For this the 555 should be modified to produce 50% duty cycle output (can be done by adding 1 extra resistor in discharge pin) to keep the shaped sine wave distortion low. Next the charge/discharge ramps on the timing cap should (...)
Analog Circuit Design :: 05-09-2009 20:17 :: E-design :: Replies: 15 :: Views: 12363
My question is why you choose just 8038 , there is much simplier IC for this
like 555 or other
Analog Circuit Design :: 05-29-2008 16:18 :: zlatkoMM :: Replies: 6 :: Views: 2473