Avago announces FO short-link transmitter/receiver

In power-generating wind and solar farms, fibre-optics technology is considered the preferred isolation technology to interface between low-voltage control logic or microprocessors and high-voltage power inverters and switching circuits.

The FO short-link technology pin-to-pin distance of 24.96mm provides transient voltage suppression of 12kV according IEC 60664-1.

Avago's FO short-link technology allows galvanic isolation on one PCB where previously separate transmitter/receiver pairs on two PCBs were linked by plastic optical fibre for isolation.

The HFBR-3810Z allows much more compact designs.

FO short-link devices have creepage and clearance specifications greater than existing optocoupler devices and offer better galvanic isolation than transformer-based technology, according to Avago.

Fibre technology has strong EMI resistance and EMC characteristics.

The Avago HFBR-3810Z short-link transmitter/receiver is said to operate reliably in high noise environments common in high-voltage switching and motor control equipment and systems.

The DC coupled data link does not require data encoding or digitising circuitry.

The FO receiver has a CMOS/TTL output for interface design.

In addition to the HFBR-3810Z, Avago Technologies offers a wide range of fibre-optic transmitters, receivers, transceivers, IGBT/Power Mosfet gate drivers and optocoupler isolation products for wind turbine, wind farm and solar electric power generation applications.