Semiconductors that Save Wires

Our innovation never stops 

The next generation power line transceivers ICs are available now!

The Problem

Wires are bulky, heavy and unreliable.

Reducing bulky copper wires is a strategic goal of carmakers, airframes, smart cities lighting designers, and more.

 

The Solution

Power Line Communication

Yamar’s DC-BUS innovative transceiver ICs merge data/control wires over DC power lines to establish reliable UART, LIN, CAN, SPI and I2C protocols power line networks, addressing the EMI/EMC requirements.

 

Applications

DC-BUS IC merge LIN and CAN protocols over power line
DC-BUS IC power line communication reduce many wires in airplanes
Managing lithium batteries over its high voltage power line using communication
Using power line communication in white goods
AC/DC power lines used to convey data within white goods products
DC power line communication in industrial applications
Lighting, air-conditions, charging controlled by using power line communication networks

Products

DC-BUS devices for power line communication

SIG Family

UART and LIN transceivers over DC power lines at a maximum speed of 115.2Kbit/s using the unique signaling technology.

DC-BUS devices for power line communication

DCB Family

CAN, UART, SPI, I2C transceivers communicate over DC power lines at bit rates up to 1.4Mbit/s using the DC-BUS technology.

 

Yamar Power line communication

DC BUS technology merge Data over existing Direct Current (DC) power lines, like those used in every vehicle implemented in small silicon devices.

The uniqueness of the technology is the use of existing protocols such as UART, LIN, CAN bus for communication and the ability to mitigate with the hostile and noisy environment.

The cable length depends mainly on the impedance of loads connected to the power line in the frequency range of 10MHz.

A 10A motor is a small load (inductive), but a capacitor of 10nF is a high load. A reasonable distance is between 20m to 100m. The lower impedance power line will reduce the communication distance further more.

The SIG family transfer UART bytes over the power line byte by byte. Any number of bytes can be transferred. The modulation is multiple phase modulation. When operating as a network, a master-slave protocol such as LIN can be used.

The DCB family of devices are message oriented. The devices get a message of any length and transfer it over the power line to the receiving devices. The DCB family has CSMA/CR mechanism for network operation.

The interface with its ECU is via CAN, UART or SPI protocols.

The SIG family of devices operate up to 115.2Kbps. The DCB1M operates up to 1.4Mbps.

Yes. Two or more data buses can operate over the same power line using different carrier frequencies.

The DC-BUS devices were designed to operate on ordinary wires. Using low capacitance wire such as twisted pair cables, UTP improve the effective communication length and performance.

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