Build me a circuit implementing PWM modulation and PWM demodulation
Budget: €8 – €30 EUR
I am looking for someone (who has experience in Electronics, Circuit design or Communication) who can simulate a simple circuit using LTSPICE, which has the following specification:
- Input: -> Digital Signal of frequency less than 1Hz (to dc).
-> This digital input signal can be also transmitted differentially (two digital signals as inputs: the main one and its inversion)
- Consists of real elements only (e.g. TLV3603, NE555, etc.), which can be imported / simulated in LTSPICE and no ideal elements (e.g. diffschmitt).
The input signal goes through a high-pass filter (consisting only of R and C components). The high-pass filter will filter everything for very low frequencies (as in this case) . Here comes the role of PWM modulation, which should be done before the high-pass filter to make the signal able to overcome the high-pass filter. After this the signal should be demodulated again to its original signal.
-> I need someone to explain to me, how could the high-pass filter values could be chosen and how the implementation of PWM modulation and demodulation part works.
- Input: -> Digital Signal of frequency less than 1Hz (to dc).
-> This digital input signal can be also transmitted differentially (two digital signals as inputs: the main one and its inversion)
- Consists of real elements only (e.g. TLV3603, NE555, etc.), which can be imported / simulated in LTSPICE and no ideal elements (e.g. diffschmitt).
The input signal goes through a high-pass filter (consisting only of R and C components). The high-pass filter will filter everything for very low frequencies (as in this case) . Here comes the role of PWM modulation, which should be done before the high-pass filter to make the signal able to overcome the high-pass filter. After this the signal should be demodulated again to its original signal.
-> I need someone to explain to me, how could the high-pass filter values could be chosen and how the implementation of PWM modulation and demodulation part works.