隔离数字信号耦合转移到DC为30ns

摘要：一对MOSFET的驱动IC和铁氧体磁珠变压器非正统的应用程序产生一个单声道，数字信号耦合隔离。

Maxim > App Notes > COMMUNICATIONS CIRCUITS HOT-SWAP AND POWER SWITCHING CIRCUITS

Keywords: magnetic coupling, digital isolation, digital signal couplers, MOSFET drivers, ferrite-bead Jun 20, 2005
transformers

APPLICATION NOTE 3533
Isolated Digital-Signal Coupler Transfers 30ns to DC

Abstract: An unorthodox application of a pair of MOSFET-driver ICs and a ferrite-bead transformer yields a
single-channel, isolated digital-signal coupler.

Optocouplers are the usual choice for coupling digital signals between isolated circuits with different ground
levels. Optocouplers have disadvantages, however. Their most important parameters, current transfer and
propagation time, change with aging. They have a relatively high static power consumption and, for most types,
limited speed.