Dynamic voltage and frequency scaling (DVFS) is a common energy-saving technique used in computer processor ICs based on the quadratic relationship between power consumption and operating voltage and the linear relationship between power consumption and frequency. It reacts to changing operating demands on the processor to minimize energy consumption. The addition of artificial intelligence (AI) […]
Power Management
TTape: A simple way to monitor Li-ion battery-pack temperature
A set of temperature-triggered switches alerts you to hot batteries. Li-ion batteries can get hot, which can cause failures or worse in the products they power. Thus, it’s important to monitor their temperature and act before damage occurs. You can monitor temperature with a set of thermocouples, scan them, and write software to produce an […]
Low-profile power supplies achieve efficiency levels up to 91% at high line
COSEL Co, Ltd announced the launch of a wide range of low-profile power supplies for medical applications. The WMA series includes two families, the WMA-F and the WMA-H. The WMA-F has a universal input range of 85 to 264VAC and is available in three power levels, 35, 75, and 100W. Designed for medical systems integration […]
Power sequencing — options and tradeoffs: part 1
Proper sequencing of the multiple power rails in a system is a critical function and can be accomplished using different approaches. Experienced designers know that one of the riskiest periods in a product’s operating cycle is when power is turned on. This power-up phase is when each of the multiple power rails must come up […]
Software library adds intelligence to USB-C power delivery
SEGGER’s emUSB-C PD is an embedded software library for managing the power delivery (PD) protocol. With emUSB-C PD, the software can actively manage cable connections. This helps embedded system developers meet the requirements of an upcoming EU mandate. Devices sold in the EU, powered with less than 100 W, must have a USB Type-C charging port. […]
IGBT modules for applications operating at 200 to 3300 V C now available in 20 and 3-level topologies
The paradigm shift towards offloading complexity to suppliers and adopting smaller IGBT modules is evident in various applications. In response to the global push for downsizing and integration, Infineon Technologies AG introduces the 4.5 kV XHP 3 IGBT modules that will fundamentally change the landscape for medium voltage drives (MVD) and transportation applications operating at […]
SiC half-bridge power module for hi-rel applications
Solitron Devices announced the introduction of the SD11487, the industry’s first hermetically sealed Silicon Carbide (SiC) Power Module for high-reliability applications. With a unique hermetic packaging format, the 51mm x 30mm x 8mm outline is the smallest hermetically sealed high reliability, high voltage, half-bridge on the market. The integrated format maximizes power density while […]
Current-sense resistors feature low TCR
Bourns, Inc. introduced four high-power, ultra-low ohmic current sense resistor series. The latest current measurement devices from Bourns are designed to help save energy while maximizing sensing performance in power electronics designs. The four CSI Model Series feature low-temperature Coefficient of Resistance (TCR) for operating accuracy over a wide temperature range and excellent long-term stability. Their […]
12 V SiC MOSFETs boast RDS(on) values of 40 Ω and 80 Ω
Nexperia announced its first silicon carbide (SiC) MOSFETs with the release of two 1200 V discrete devices in 3-pin TO-247 packaging with RDS(on) values of 40 mΩ and 80 mΩ. NSF040120L3A0 and NSF080120L3A0 are the first in a series of planned releases that will see Nexperia’s SiC MOSFET portfolio quickly expand to include devices with […]
MOV protects circuits from overvoltage, includes thermal protection
Bourns, Inc. announced its new Model 1220 TPMOV Series Surge Protective Devices (SPDs) that provide robust surge suppression in a compact PCB form factor. Featuring advanced built-in thermal protection capabilities, Bourns designed this latest SPD series to safeguard sensitive equipment from severe power surges while effectively preventing thermal runaway caused by repetitive high-energy surges, excessive overvoltage, […]