333 results found, displaying items 101 - 120

The LDS8160 LED driver from Leadis Technology features the company’s proprietary LED-Sense temperature-compensation engine and PowerLite current regulator. The former monitors the in-situ temperature on each LED and independently optimizes the LED current for best luminosity-versus-temperature performance. The latter ensures a low dropout voltage on each LED channel—typically 25 mV across the full operating current range.

Capable of driving external MOSFETs to at least 12 A per output, the MAX15023 dual-output, synchronous step-down controller operates over a wide input range of 4.5 to 28 V. It also integrates a ±1% accurate voltage reference to provide an accurate output voltage from 0.6 V to 85% of the input voltage.

With efficiency ratings of over 90%, the SPC series of intelligent solar-powered trickle chargers maintains charge levels in standard sealed lead-acid (SLA) batteries. These controllers, which are designed to interface with industry-standard photovoltaic solar panels, can be used on electric golf carts, light-duty all-terrain vehicles, or other types of SLA battery-operated electric vehicles; remote data-gathering equipment; or recreational vehicle backup power subsystems.

Mechanical relays, contactors, and switches control the flow of electricity by the mechanical action of two conducting elements. The physical contact of two conducting elements creates a path for electricity. Remove that physical contact, and the electrical pathway is broken. Mechanical relays, contactors, and switches operate in this manner. However, solid-state triac devices may be used to interrupt the flow of electricity in a manner that is synchronous with the ac current waveform.

“EcoCar: The Next Challenge,” a collegiate competition gauged towards creating a hybrid vehicle by modifying a 2009 Saturn VUE, recently received a charitable boost from National Instruments.

The Series 6135 and 6136 power-entry modules from Schurter Inc. are a combination of appliance inlet and circuit breaker that provide an alternative to fused power-entry modules. Both modules are especially suited for applications with high inrush currents and high transient loads. The ability to manually reset the circuit prevents the expense and inconvenience of fuse replacement.

The latest surface-mount technology (SMT) power resistors from Bourns have good pulse protection, a smaller footprint, and simple series dropping functions that enable cost-effective automated assembly. Designated as the PWR2010, PWR3014, PWR4318 and PWR5322, the power resistors feature high power density, low temperature coefficient, and power ratings of 1/2 to 3 W.

Housed in a low-profile package, the high-capacitance PulseCap capacitor from AVX Corp. targets PCMCIA/USB wireless express cards and other applications where bulk capacitance is needed to boost transmitter power. These large-case-size tantalum products are rated at 2200 µF (2.2 mF) at 6.3 V.

Teseq Inc. has added five broadband models that operate from 0.8 to 3.1 GHz and 2 to 6 GHz with power levels ranging from 30 to 450 W to its line of power amplifiers. According to the company, they offer higher reliability and excellent performance in demanding electromagnetic-compatibility (EMC) environments with non-ideal load conditions due to antenna mismatch caused by equipment under test in the antenna’s path.

The MIC23150 has the highest output current in Micrel’s HyperLight Load family of synchronous step-down regulators. The regulator’s patented architecture delivers an extremely high efficiency light load—93% peak and 87% under a 1-mA load—for portable products and green home/office appliances.

ZPower has announced plans to introduce what it says will be the first rechargeable, silver-zinc battery for consumer electronics later this year. The company demonstrated the battery technology, which will first be available for laptop computers and cell phones, at the 2009 International CES in Las Vegas.

Utility companies now rely on electronic meter technology to improve grid performance and reliability, as well as reduce costs and offer energy-saving consumer options. The Texas Instruments MSP430FE42x2 microcontroller (MCU) series reduces the electronic bill of materials (BOM) to the $1 range in high volumes for single-phase electricity metering (e-metering) applications.

The GS2 series of 3- and 6-W wall-mount switching power supplies from Advanced Power Solutions targets portable medical applications. The series comprises 22 output voltage models ranging from 5 to 24 V dc and 3 or 6 W of output power.

The SiA850DJ from Vishay Intertechnology is the first 190-V n-channel power MOSFET plus co-packaged 190-V power diode to offer an on-resistance rating of 1.8 V VGS, according to the company. Offered in the Siliconix PowerPAK SC-70 package, it has a compact 2- by 2-mm footprint and an ultra-thin 0.75-mm profile.

The TES-1 series of isolated dc-dc converter modules from Tracopower provides 1 W of output power, suiting them for ground loop elimination, voltage isolation in digital interface applications, and other functions. The 18 models in the series provide input voltages of 5, 12, or 24 V dc and single or dual outputs ranging from 5 to 15 V dc.

Cool Innovations has introduced a line of flared pin-fin heatsinks that provide unparalleled cooling power due to their unique structure, which was specifically optimized for natural convection environments, according to the company. With their rugged array of round pins, they suit harsh industrial environments and outdoor applications.

The BRL3225 series of power inductors from Taiyo Yuden achieves 2.4-A rated current with a 1-µH inductance value, which is the highest in the industry for an EIA 1210 size device, according to the company.

Biometric sensor modules can take advantage of the Intellimax FPF2024, FPF2025, FPF2026, and FPF2027 advanced load switches from Fairchild Semiconductor, which provide a 1-µA quiescent current. According to the company, that’s the lowest tally in the industry, prolonging battery life by using less that 2% of the current of alternate solutions that offer quiescent currents ranging from 60 to 80 µA.

PowerBeams’ infrared power transmission system, Powermitter, can be used to deliver power to a system without the need for wires. It uses IR laser diodes to transmit power at distances up to 100 m. And Longer ranges are possible.

• Build A Smart Battery Charger Using A Single-Transistor Circuit
• Efficient DC-To-AC Inverters Charge Equipment Racks
• DC-AC inverter targets electroluminescent applications
• Easy-To-Build AC Power Meter
• Voltage-To-Current Converter Works From A Single-Supply Rail