| Pulse Width Modulation (PWM) | | 2008-06-13 14:21:36 | | hi all
i am asking my self always, how can we communicate between two modules with pwm method? i mean what is the basic idea of communications such as giving signals and orders between modules at the same time?
for example how can two wires give signals to qty#2 meters at t... | | By: CR4: The Engineer's Place for Discussion & New | | |
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| Encoding and modulation of digital signals | | 2008-02-25 07:26:09 | | We know that digital signals are stored as binary numbers in memory cells. Let’s see how these digital signals can be transferred in other words - how they can be encoded in to electrical signal shape. When signal has to be sent it has to be modulated.
Pulse Code Modulation (PCM)
Probably simplest and most common modulation [...]... | | By: Scienceprog - Embedded Related Info | | |
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| Pulse Width Modulation DC Motor Control by 4011 | | 2008-02-21 07:21:58 | | Often, people attempt to control DC motors with a variable resistor or variable resistor connected to a transistor. While the latter approach works well, it generates heat and hence wastes power. This simple pulse width modulation DC motor control eliminates these problems. It controls the motor speed by driving the motor with short pulses. These [...]... | | By: Circuit Project Electronic | | |
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| IR Remote Control Modulation Detector | | 2007-10-15 13:34:55 | | Circuit : Andy Collinson
Email: anc@mitedu.freeserve.co.uk
Description:
A circuit to extract and measure the modulated carrier of an Infra Red remote control. Note that the circuit does not physically separate control pulses from modulation, but amplifies the completereceived signal allowing the waveform to be displayed ideally on an oscilloscope or a frequency counter. Modulation frequencies between 1kHz and [...]... | | By: Circuit Project Electronic | | |
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| Modulation | | 2007-05-22 05:29:00 | | Inbound Vs Outbound Transmission Characteristics :Outbound- Continuous output, bandwidth shared among remote sites receiving TDM frames- Emphasis on inexpensive receiver/LNB- High bit rate (up to 32Mbps)Inbound- Random access, transmitter bursts as required to communicate with the hub- Emphasis on inexpensive modulator- Medium bit rate (up to 2Mbps, with large scale VSAT)... | | By: VSAT for Marine | | |
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