waveform inverter

[killerwhale007]

hi, I am generating a saw tooth wave form but can you help me with a


I have a analogue circuit that will generate a saw tooth wave form but the requirement is to have a counter that will count 4 cycles then invert the wave form for another 4 cycles.

can you help me with a simple circuit that will invert the waveform after 4 cycles and how do I make it to count 4 cycles. Thank you

Sample

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[Roff]

I haven't built this, or even simulated it.

 

[akg]

hi Ron , but the tri i/p marked as vcc?

 

[killerwhale007]

thanx it is greate where can I get more info on how parts works any web
site

 

[Roff]

hi Ron , but the tri i/p marked as vcc?

What??
Tri is not an input, it's an output, and I don't see it "marked as vcc".

 

[Roff]

thanx it is greate where can I get more info on how parts works any web
site

U1 is a comparator (could be an op amp if you are running at low frequency).
U2 and U3 are op amps.
What is your supply voltage? What is the frequency of your oscillator? What is the duty cycle?
This circuit will not run at very high frequency unless you use a 5 volt supply, a high-speed CMOS counter, fast op amps, and a fast comparator.
R1 and C1 control the frequency.

 

[chemelec]

hi, I am generating a saw tooth wave form but can you help me with a


I have a analogue circuit that will generate a saw tooth wave form but the requirement is to have a counter that will count 4 cycles then invert the wave form for another 4 cycles.

can you help me with a simple circuit that will invert the waveform after 4 cycles and how do I make it to count 4 cycles. Thank you

Sample

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If your Frequency is Constant, than you can use a 555 as a Monostable Flipflop timer, to turn an inverter on/off on every Forth Pulse.

I used this principal at one time to create a conversion in the digital pulses between Metric and Imperial Measures. It Worked very good.

 

[killerwhale007]

no actually I am gona have to run it at 0.5Hz so I can have 2s per waveform


can you explain the operation of the circuit on each blocks please
thank you

 

[Roff]

no actually I am gona have to run it at 0.5Hz so I can have 2s per waveform


can you explain the operation of the circuit on each blocks please
thank you

Tell me the value of vcc and I'll try to give you a working schematic and a detailed explanation.
Can you tell us what this is to be used for?

 

[dinofx]

It sounds like the siren on a car alarm.

 

[Roff]

It sounds like the siren on a car alarm.

I find that hard to believe - especially at 0.5 Hz.

 

[killerwhale007]

I dont really know I guess +15v

 

[akg]

I dont really know I guess +15v

out of curiosity , for what purpose this waveform is used.?

 

[Roff]

I dont really know I guess +15v

I won't be able to get to this until Monday. The original schematic is at work.

 

[killerwhale007]

thanx

The frequency is 1Khz ( 1000 hz ) to give me 1ms per cycle and the input voltage would be 4V vcc to gove me 2v p-to-p.
thank you

 

[Roff]

no actually I am gona have to run it at 0.5Hz so I can have 2s per waveform

The frequency is 1Khz ( 1000 hz ) to give me 1ms per cycle and the input voltage would be 4V vcc to gove me 2v p-to-p.

I dont really know I guess +15v

the input voltage would be 4V vcc

Are you having a little trouble making up your mind?
What are you going to use this for?

 

[killerwhale007]

soory about the previous one I didnt have much information, after invistigating the requirmets are 2v peak, 1ms cycle which is 1KHz.

I appreciate it thank you