Voltage and current sources are two fundamental types of electrical sources used in electronic circuits. A voltage source, such as a battery, is commonly used in many devices. It’s a two-terminal device that maintains a constant voltage across its terminals, regardless of the current flowing through the source. A current source is typically less discussed…
How to design a constant current source using a linear buck converter
In many applications, there’s a need for a constant voltage source. However, there are more constant current source applications than constant voltage sources. Most power supplies are voltage sources, including batteries and bench power. A constant current source can be used anywhere a fixed current is required. A resistor can also be used, but the…
STMicroelectronics launches 32-channel ultrasound transmitter for handheld scanners
STMicroelectronics has expanded its family of advanced ultrasound transmitters by adding a 32-channel variant with high output current for portable applications. The new transmitter, STHVUP32, provides ±800mA aimed at portable systems that demand extra drive capability for a coaxial cable-mounted probe. Joining the portfolio alongside the 64-channel STHVUP64, the new 32-channel version contains similar features to increase performance…
Vishay introduces new IHDM edge-wound, through-hole inductors
Vishay Intertechnology, Inc. has introduced two new IHDM edge-wound, through-hole inductors in the 1107 case for commercial applications with soft saturation current to 422 A. Featuring a powdered iron alloy core technology, the Vishay Custom Magnetics IHDM-1107BBEV-20 and IHDM-1107BBEV-30 provide stable inductance and saturation over a demanding operating temperature range from -55° to +180 °C…
STMicroelectronics’ new dual high-side switches provide flexibility
STMicroelectronics’ latest high-side switches, the IPS2050H and IPS2050H-32, permit two programmable current-limit values for smart driving of capacitive loads that draw high startup current. These new dual-channel switches have an input-voltage range from 8 to 60V to withstand up to 65V on the input pin, ensuring flexibility and robust performance in industrial applications. The integrated power MOSFET…
Vishay’s IHLP high-current inductors available with short lead times
Vishay Intertechnology, Inc. announced that the lead times for its IHLP low-profile, high-current inductors remain stable and competitive at 10 to 16 weeks. As a result of improved productivity and a capacity expansion, the company is presently experiencing no shortages for its IHLP products. And with Vishay’s continued efforts to expand capacity, the company doesn’t…
TI’s new buck/boost converter integrates supercapacitor charging capability
Texas Instruments (TI) introduced a new bidirectional buck/boost converter with an ultra-low quiescent current (IQ) of 60 nA, which is one-third the IQ of competing boost converters. The TPS61094 buck/boost converter integrates a buck mode for supercapacitor charging while providing ultra-low IQ, enabling engineers to extend battery life by as much as 20 percent when compared…
Infineon adds new current ratings to its EconoDUAL 3 portfolio
Infineon Technologies recently launched new current ratings for its EconoDUAL 3 portfolio with TRENCHSTOP IGBT7 chips. With the broad range of current classes from 300 up to 900 A, the portfolio offers inverter designers a high degree of flexibility while also providing increased power density and performance. In addition to solar and drive applications, the portfolio is…
Maxim expands its expands its MAXSafe Technology monitoring line
Maxim Integrated Products, Inc. has expanded the MAXSafe Technology line with the MAX22530, an isolated, field-side self-powered 12-bit system monitor. Featuring four channels, the MAX22530 provides isolated system monitoring to improve accuracy 50x and to reduce solution size by 40 percent by integrating five components into a single IC. Automation system designers continually seek ways…