The op amp-based current sensing circuit described here is not new, it has been around for some time, but with very little discussion of the circuit itself. Somewhere along the line it was informally ...

The main supply voltage in a notebook computer drops when the wall cube is unplugged, because battery voltage is generally lower than that from a wall cube. Even the voltage of a lithium-ion battery ...

Resistor-based current sensing is simple, easy to use, low cost, extremely linear and requires no calibration. The statement that voltage across a resistor is directly proportional to the current ...

High-side current sensing detects downstream shorts and avoids many sources of electrical noise and EMI. For over a century the standard method of measuring amperage has used a current-shunt ammeter ...

Current sensing remains a challenge and while most engineers use DCR current sensing it is notoriously inaccurate. So what can be done to improve accuracy? The buck converter is the most common power ...

Designed specifically for high-voltage sensing, a new generation of optically isolated amplifiers make monitoring and system protection circuits more accurate and easier to design. These iso-amps can ...

Electrification has created a new paradigm in automotive power systems; whether the design is a hybrid electric vehicle (HEV) or fully electric vehicle (EV), there are new design challenges to address ...

A range of manufacturing and production processes rely on current-operated relays to provide a continuously adjustable trip-current setting. They are able to protect mechanical apparatus from jam-up ...

What qualities are needed for current sensors in an automotive environment? Warren Pettigrew spells out the requirements. Today what is expected of automotive sensors is quite different to what was ...

WUXI, China — TopLIOU Current Transformer manufacturer Liou Electronics, a long‑established designer and maker of engineered current sensing components, has reported a noteworthy increase in its ...

Circuit breakers are manual switches that open under overload conditions. Circuit breakers discussed here are general-purpose types that meet the minimum Underwriters' Laboratories Inc. (UL) standards ...