EDN

AC/DC to Logic Interface Optocoupler

The HCPL-3700 is a threshold detection optocoupler that accepts either an AC or DC input and built using Fairchild’s Optoplanar™ packaging technology for high common mode immunity. It consists of an ...
EDN

Vishay’s New Non-Zero-Crossing 1.5-kV/µs dV/dt Phototriac Optocouplers Provide Off-Line Control of AC Voltages up to 380 V

Vishay's New Non-Zero-Crossing 1.5-kV/µs dV/dt Phototriac Optocouplers Provide Off-Line Control of AC Voltages up to 380 V Vishay Intertechnology, Inc. has announced the VO3052 and VO3053, two new non ...
Electronic Design

Low AC Input Current Optocouplers

Two new series of 4-pin, low AC input current optocouplers with phototransistor output are available from Vishay Intertechnology, Inc. The VOS628A and VOS627A are offered in the compact SSOP-4 ...
Electronic Design

Dealing with Low-Current Optocouplers

Designers of switch-mode power supplies generally put a lot of care into selecting the placement of poles/zeros of the supply transfer function to ensure stable operation. However, many such designs ...
Machine Design

Optocouplers for hybrid electric power trains

Hybrid-electric vehicles must operate reliably under harsh conditions that demand special qualities on the part of power-conditioning electronics. Consider the electrical system for a hybrid-electric ...