Designers of Bluetooth headphones, activity monitors, smart garments, smartwatches, and other size-constrained devices can now increase battery life and efficiency using the MAX77650 / MAX77651 power management ICs (PMICs) from Maxim Integrated Products, Inc. Size is critical for hearables and wearables as they continue moving to smaller form factors. Most PMICs for these small, lithium-ion […]
Power Management
36-V buck battery charger for lithium-ion cells
Analog Devices, Inc. introduces the LTC4091, a complete lithium-ion battery backup management system for 3.45V to 4.45V supply rails that must be kept active during a long duration main power failure. The LTC4091 employs a 36V monolithic buck converter with adaptive output control to provide power to a system load and enable high-efficiency battery charging […]
PTC-based inrush current limiters handle up to 560 Vac
TDK Corporation has extended its range of EPCOS PTC-based inrush current limiters. The four new versions of the B5921*J0130A020 series with plastic housing are designed for voltages from 280 V AC to 560 V AC, offer rated resistances from 22 Ω to 100 Ω at 25 °C and have a heat capacity of up to 2.3 J/K. They are UL […]
3kW two-phase digital PFC and reference designs
IXYS Corporation, a global manufacturer of power semiconductors and integrated circuits for energy efficiency, power management, and motor control applications, today announced the availability of a new design: 3kW Two-Phase Digital Power Factor Corrector (PFC). It is based on Zilog’s 8-bit Z8F6481 microcontroller, a member of the Z8 Encore! XP F6482 series of microcontrollers, and […]
Reverse polarity protection: how can you provide it?
The reverse connection of a circuit to its DC power source, whether it’s a battery or power supply, can damage and even destroy the electronics. For this reason, many connectors are “keyed” to ensure correct connection. But there are many connections which are directly hard-wired using wires inserted into screw terminals, or ring or spade […]
Energy processing units reduce dynamic switching, static leakage power components
Sonics, Inc., introduced ICE-P3, the IP industry’s first product to automate implementation of dynamic voltage and frequency scaling (DVFS). ICE-P3 is the newest member of the ICE-Grain Family of Energy Processing Units (EPU) that identifies, sequences, and controls power state transitions in hardware up to 500X faster than conventional software-based approaches. ICE-P3 includes all of the capabilities […]
Power Shunt Resistor Detects Currents at up to 10-W Power Rating
KOA Speer Electronics introduces the PSG4 Current Sense Power Shunt Resistor, featuring a power rating of up to 10 Watts in a 2726 package. The PSG4 provides for more accurate electric current detection due to its 4 terminal construction. In addition, it offers superior heat resistance with an operating temperature of -65°C to +175°C. KOA Speer’s […]
Photo control assemblies rugged enough for street lights
TE Connectivity is unveiling several innovations to its LUMAWISE photo control portfolio providing street lighting manufacturers additional design flexibility. TE’s LUMAWISE base assembly, sleeve and covers together integrate power and signal interface to the dimming receptacle to ensure long-term reliability. This interface can be used in applications such as LED outdoor roadway, street and area lighting […]
Power management IC handles sequencing, monitoring, regulation for differing IC technologies
Silego Technology Inc. announces the introduction of SLG46580, further expanding the GreenPAK (GPAK) family of Programmable Mixed-signal Integrated Circuits (CMICs). This newest GPAK is targeted to support power systems in wearable and handheld market segments. This device is both highly integrated and highly flexible, and can provide a rich set of features, including voltage monitoring, […]
Top power electronics threads on EDAboard.com – May
(editor’s note: Intrigued by these power electronics problems? Have a question or another solution? Then click the “Read more” link and follow the conversation on EDAboard.com or log in to EDAboard and participate in the power electronics forum threads.) Common mode noise mitigation in offline power supplies – In offline power supplies, common mode emissions […]