Articles and news - 5

In switch-mode power converters, peak current control is very popular because of its inherent current limitation and ease of control. However, if the duty cycle is higher than 50%, there is an instability problem...

High integration in today’s analog ICs is ever expanding, but there are times when a circuit designer needs to design a better differential stage to an amplifier...

Manufacturers of optocouplers characterize their devices for CTR, and an optocoupler’s data sheet will list its CTR ranges. Unfortunately, the CTR range may be too wide for some applications...

Few methods for analog to digital conversion are more “mature” than the classic combination of a voltage-to-frequency converter with a counter. VFC digitization is naturally integrating, so good noise rejection is inherent, as is programmable resolution...

Most differential field bus technologies, like CAN and RS-485, specify a parameter called common-mode voltage. Common-mode voltage refers to the range of bus input voltages, with respect to the transceiver’s ground...

This circuit of only a few components is powered by two AA batteries and features a mode that extends its power savings...

Manual amplifier nulling circuits are simple topologies, typically consisting of just a trimmer pot and a couple of fixed resistors intended to allow offset adjustment by a (usually small) symmetrical fraction of bipolar supply voltages...

It’s interesting, useful, and fun that basic electronic topologies often turn out to have utility in multiple and surprisingly different applications...

This Design Idea mates a precision current source IC with precision difference amp chips to create a programmable current source or sink...

In many applications, there are requirements of low power, high performance differential amplifiers to convert small differential signals to a readable ground referenced output signal. Input voltages at two inputs usually share a large common-mode voltage...