Sine wave inverter voltage clipping – I’m in the process of building a sine wave inverter (MOSFET full-bridge and a low frequency transformer). I can’t manage to tune up the output filter (a series inductor in the transformer primary circuit and a capacitor across the secondary transformer). I have tried different inductor cores (E shape […]
Power Management
Thermoelectric module for hi-rel applications
Global technology leader Laird has developed an advanced thermoelectric module (TEM) designed for high-reliability applications like polymerase chain reaction (PCR) thermal cycling, which require extended meantime between failure (MTBF). The polymerase chain reaction (PCR) is a biochemical technology that amplifies a single copy or a few strands of DNA across several orders of magnitude, generating […]
Wireless power transmitter IC handles 15 W in Qi wireless charging systems
Toshiba America Electronic Components, Inc. (TAEC)*, a committed leader that collaborates with technology companies to create breakthrough designs, today launched a compact and efficient wireless power transmitter IC with a power transmission capability of 15 watts (W). Combined with a host microcontroller, the TC7718FTG realizes a wireless power transmission system compliant with Qi v1.2, the […]
Transmitter/reciever handle 15-W Qi wireless charging
Integrated Device Technology, Inc. (IDT) has introduced two new devices that deliver a complete high-efficiency wireless charging solution for electronics demanding up to 15 W of output power. Supporting wireless charging for new categories of consumer products and infrastructure, the highly integrated chips deliver industry-leading power conversion efficiency of over 86 percent from transmitter input […]
3-kF ultracapacitors work at 3 V
Maxwell Technologies, Inc. announced the newest addition to its K2 family with a 3-volt (3V), 3,000-farad ultracapacitor cell, now available in sample quantities. With 31 percent higher power than Maxwell’s leading 2.7-volt, 3,000-farad cell in the industry-standard 60 mm cylindrical form factor, customers now have the flexibility to either increase available power and energy in […]
Buck-boost battery charger uses USB Type-C connector for two-way power delivery
Intersil Corporation has introduced the industry’s first buck-boost battery charger that supports two-way power delivery in ultrabooks, tablets and power banks using the reversible USB Type-C™ connector. The single-chip ISL9237 Narrow VDC (NVDC) battery charger replaces competitive buck and boost two-chip charger solutions, eliminating a charger IC and inductor to reduce customer bill of materials […]
30-W, single-port PoE midspans are gigabit compatible
Phihong USA, a global leader in the development of Power-over-Ethernet (PoE) technology solutions, has released a new series of 30W, single-port PoE midspans designed to power IEEE802.3at-compliant applications, including: IP telephones, security cameras, IP print servers, and wireless, Bluetooth, WiMax access points. The new 30W PoE midspans are a limited power source (LPS) rated for […]
AC surge protector devices with type 1 and type 2 meet the latest UL 1449 standard
Bourns, Inc. has announced the expansion of the company’s AC surge protective device (SPD) line with two new heavy duty models that meet the latest Underwriters Laboratories’ (UL) 1449 safety and performance standard. Designated Bourns Model 1251 and Model 1252, the two series are high-performance hybrid SPDs. Model 1251 is a Type 1 SPD designed […]
Ultra-compact EV charger made with GaN transistors
Automotive electronics specialist HELLA, in collaboration with GaN Systems have developed a Level-2 electric vehicle (EV) charger prototype with efficiencies exceeding 97% at an unprecedented 2.6 kW/l power density. Prior to this achievement, Level-2 EV chargers reached maximum efficiencies of 94%. Using GaN Systems’ 60 A, 650 V GS66516T switches in an innovative two-stage architecture, […]
Thermoelectric Module simulation software shortens design time
Global technology leader Laird has updated and enhanced the AZTEC™ thermoelectric module (TEM) simulation program algorithms to further reduce thermal design time. The AZTEC product selection tool allows design engineers to specify a given set of input variables based on application attributes and the software analysis outputs optimal TEMs for examination. The advanced program enables […]
