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PWM Digital Power Amplifier with 100W Per Channel

January 10, 2008 8:31 am | Stmicroelectronics | Comments

STMicroelectronics' latest digital power amplifier, the STA510F, can drive up to 100W per channel of audio into stereo 8-ohm loads. The device will also drive 4 x 50W into 4 ohms, or up to 200W in a mono configuration, using STM's proprietary full flexible amplification method of digital modulation. However, it still accepts signals from other drivers using any PWM modulation scheme such as ternary, phase shift, or binary.

Low Capacitance ESD Protection Chips for USB Ports

January 10, 2008 7:01 am | Comments

OnChip Devices introduced low capacitance ESD protection devices for single and dual USB ports.  These devices protect the two data lines and the power rail of the USB 2.0 high speed interface. The ESD2100-02 and ESD2100-04 (2 and 4 channels, respectively) have a sub-1pF line capacitance to ensure minimal distortion USB signal, offering a compromise between low line-to-ground

Inlet Filters with Earth Line Choke

January 10, 2008 6:35 am | Comments

Schaffner EMC extended its FN9222 inlet filter series to include the new FN9222E, which as an earth line choke for designs needing greater attenuation performance. The FN9222E outperforms Schaffner's existing IEC inlet filters and is mechanically compatible with the panel cut-outs of traditional filters. Each filter has a traditional screw mounting.

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RF Power Terminator and Attenuator for High-Frequency Applications

January 10, 2008 6:00 am | Comments

TT Electronics IRC released the PAT3060P high-power attenuator and RFTF surface-mount transmission line terminator, both featuring low VSWRs at high frequencies. They are useful for RF power meters, RF and microwave power amplifiers, radar, satellites, avionics, wireless communications, RF power sources, and microwave test instruments. The PAT3060P's frequency has a VSWR of less than 1.3 at 10 GHz. Attenuation values include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16 and 20 dB.

Flexible Controller for Flyback Converters Reduces Parts Count

January 10, 2008 5:25 am | Stmicroelectronics | Comments

STMicroelectronics announced a flexible controller for high-performance flyback power converters, which can operate in fixed-frequency (FF) or quasi-resonant (QR) mode. The chip integrates protection capabilities commonly implemented with external components, and is useful for applications such as AC/DC adapters/chargers, monitors, DVD players, and set-top boxes. During light load, the chip enters a controlled burst state at low frequency with constant peak current

Emitters Effectively Dissipate Heat

January 9, 2008 10:52 am | Comments

Everlight’s announced the 5W EHP-B03 Series emitters which are designed, binned and tested for standard operation at 700 mA and have the capability of being driven at 1000 mA. The series come with a special Star design – MCPCB (DLC based), which allows effective heat dissipation and low thermal resistance between junction and Star to a typical value of 11K/W. They deliver light output performance of 250 lm at 700 mA

CCFL Backlight Inverter Drive IC is Tightly Integrated

January 9, 2008 10:46 am | Fairchild Semiconductor | Comments

Fairchild Semiconductor's FAN7316 and FAN7317 are CCFL backlight inverter drive ICs for N-N half-bridge, push-pull, and P-N full-bridge LCD designs. A wide input voltage range, built-in open lamp protection, and open lamp regulation eliminate up to 30 external components in traditional four-lamp circuit inverter designs. The FAN7316 runs on 4.5V to 24V, and the FAN7317 uses 6V to 25.5V. Other features are

DC/DC Converter Platform Provides On-the-Fly Voltage Changes

January 9, 2008 10:13 am | Comments

Semtech announced the SC198 and SC198A, two new dual-output synchronous DC/DC buck converters each with eight VID programmable output voltage settings that allow portable systems manufacturers to lower processor voltages and extend the battery life of their devices. The converters are suited for use in

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Bus Couplers and Expansion Module Added to I/O Product Line

January 9, 2008 9:30 am | Comments

Phoenix Contact announced three additions to its Inline Modular family of products: two bus couplers and a backplane expansion module. The Modbus TCP/UDP bus coupler offers the same functionality as the company's Inline Modular Ethernet Bus Coupler in a compact form. The new product incorporates

USB-Controlled RMS RF Power Meter in Small Footprint

January 9, 2008 9:05 am | Comments

National Instruments announced its first USB-controlled RMS RF power meter, measuring just 8.5" × 1.18" × 2.2". The 6 GHz NI USB-5680 is powered solely from a USB cable and consumes only 100 mA. It has a frequency range of 50 MHz to 6 GHz, dynamic range of 63 dB, and amplitude accuracy of ±0.18 dB. An executable soft front panel and software libraries are

High Efficiency 50W and 100W External AC/DC Power Adapters

January 9, 2008 8:43 am | Comments

Emerson Network Power debuted two high-efficiency external AC/DC power adapters, models Astec AD50 and AD100. Features include universal 90-264 Vac inputs, so they can be used anywhere, up to a continuous 4.16A at 50W, and continuous 2.08A at 100W. The AD50 is available with medical safety approvals for non-patient contact and non-patient critical use

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55W Desktop Switcher Does Not Require Internal Cooling Fan

January 9, 2008 7:24 am | Comments

Kuantech Power announced the KSCFH55 Series of ITE safety approved desktop and wallmount AC/DC power supplies, which provide 55W of power in a 4.27” x 2.07” x 1.44” package. The KSCFH55 Series is suitable for battery charging, operates from 90-264V AC input, and offers single output models ranging from 5V DC up to 24V DC. Units have a standby power consumption

Large Enclosures Enhance Visual Impact

January 9, 2008 6:50 am | Comments

OKW have extended their ‘SOFT-CASE’ enclosures with the ‘XL’ series. These models have been designed for larger mobile electronics. Typical applications will include hand-held instrumentation, medical devices, mobile data logging and data capture equipment. The enclosures have been designed to enhance the visual impact and tactile quality of modern electronic devices.

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Gigabit Ethernet VME Switches Have 24 Ports

January 9, 2008 6:46 am | Comments

Interface Concept announced the ComEth4070a family of 6U VME L3 Gigabit Ethernet switches for embedded applications.  These switches combine a layer 2+ switch and layer 3 router in a single board, supporting full wire speed L2 bridging and IP routing with an L2-L4 access list for classification, filtering, and prioritization. Twenty Gigabit Ethernet ports are routed

Power Factor Corrected AC/DC Power Supplies

January 8, 2008 10:43 am | Comments

MicroPower Direct now offers the MPA250x series of 250W power supplies in a 1U height U-chassis. These AC/DC switchers include an autoranging 90V AC to 264V AC input, power factor correction, full safety approvals, and filtering. Ten standard models operate from a autoranging inputs of 90V AC to 132V AC, or 180V AC to 264V AC. Outputs are factory set to DC increments of

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