Power-line-modem


Posted on Aug 28, 2012

In the 100-kHz application from left to right, the coupling network feeds into the receiver ~section on the bottom of the chip. (The external components are summarized later.) The receive data output is pulled up via RPuLL ~ 10 K!l. A minimum current of 10 mA sets the voltage drop across RpuLL· Another voltage supply, VLoGJc, is shown if the user wants to have the output sent at TTL levels. Across the top is the transmitter section; going from right to left, the oscillator network, the class AB output stage (note feedback resistor RFEEDBAcK) and the drive section.


Power-line-modem
Click here to download the full size of the above Circuit.

The LC values on the oscillator network should match those on the bandpass filter in the receiver. The drive stage feeds into the coupling network and back into the receive section. This enables the on-chip collision detection with listen-while-talking capability. This effect can be cancelled, although the transmitter will still be connected to the receiver.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

VHF preamplifier with BFY91
Ultra-high gain audio amplifier
Neon tube flasher
TL494 magic chip
Telephone Line Indicator Circuit
Audio Analogue to Digital Converter AD2496
app note high voltage led applications
Water level indicator circuit using CMOS ICs
Domestic And Industrial
Original 2N2/40 Schematic Diagrams
Synchronous controller circuit diagram of a recording transcript
Amplifier circuit diagram tda1521
555 meter circuit diagram of the analog information Qigong
Digital sound and light control stairs delay circuit switching circuit 6
High Power Full Bridge Flyback Driver circuit



Top