Power

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PFC boost controller achieves power factor over 0.99

PFC boost controller achieves power factor over 0.99
Linear has announced the LT8312, a PFC boost controller that can achieve a power factor of greater than 0.99 by actively modulating the input current, allowing compliance with most harmonic current emission requirements. This device operates with current mode control and critical conduction mode, a variable frequency switching scheme that returns the current to zero in the inductor with every cycle.
19th February 2015

AC/DC full-brick power module features a 91% efficiency

AC/DC full-brick power module features a 91% efficiency
A 700W AC/DC full-brick power module, which provides users with a convenient AC/DC board mounted solution, has been released by TDK-Lambda. Expanding the company’s PFE-SA series of modules, the PFE700SA is 3% more efficient than the PFE700S, launched five years ago. The device is suitable for use in industrial, MIL-COTS, broadcast, datacomms, telecomms, test and measurement and LED display and signage applications.
19th February 2015

Isolated DC/DC convertors precisely regulate output voltage

GE’s Critical Power business has expanded its Hammerhead series of DC/DC modules with 228W quarter-brick QHHD019A0B isolated DC/DC converters. The low-height modules provide a single, precisely regulated output voltage over an input voltage range of 18-75VDC. The modules achieve typical full-load efficiencies of greater than 93% at input voltages of 24 and 48V.
19th February 2015


MOSFET enhances reliability in portable electronics

MOSFET enhances reliability in portable electronics
Providing increased power density and reliability for portable electronics, a 20V n-channel TrenchFET power MOSFET has been introduced by Vishay Intertechnology. According to the manufacturer, the SiA466EDJ offers the industry's highest package-limited continuous drain current for a 20V MOSFET in the 2x2mm footprint area: its 25A package-limited continuous drain current is 13% higher than the closest competing device.
19th February 2015

Controller reacts instantaneously to any changes in output

Optimised to power FPGAs in telecomms, data communication and networking applications, the ZSPM1503 single-phase, true-digital power solution has been released by ZMDI. The device has the ability to regulate the output voltage within a tight tolerance of ±1% and minimise output ripple voltage to 5mV peak-to-peak or better, which is typically needed to power the core voltage for FPGAs with a 1.2V supply.
19th February 2015

Controller responds quickly to large step changes in current

Designed for non-isolated, high-current POL supplies in FPGA applications, the ZSPM1502 single-phase, true-digital power solution has been released by ZMDI. The PWM controller has been optimised to provide the ultra-fast transient load response typically needed for many higher performance FPGAs in telecomms equipment operating with a 1.0V supply.
19th February 2015

Effective architecture allows zero no-load consumption

STMicroelectronics and Flextronics have jointly developed a plug-in charging platform based on an ST multi-mode power-management controller that delivers breakthrough technology for mobile devices. The energy-efficient platform is designed with the industry’s most effective power-management architecture to achieve zero no-load power consumption and excellent dynamic load regulation.
18th February 2015

Wall power adapters meet future efficiency standards

Wall power adapters meet future efficiency standards
CUI has expanded its 12 and 24W US wall power adapter series to meet US Department of Energy Level VI efficiency standards, which aim to significantly lower the amount of power consumed when the end application is not in use or is no longer connected. The SWI12-SC and SWI24-SC series meet the more stringent average efficiency and no load input power requirements set to become effective in February 2016.
18th February 2015

Thick film power resistor covers 0.016Ω to 700kΩ

Thick film power resistor covers 0.016Ω to 700kΩ
Targeting automotive, industrial and military applications, Vishay has released an AEC-Q200-qualified, 25W thick film power resistor in a compact surface-mount TO-252 style (DPAK) package. Saving space compared with previous solutions, the Vishay Sfernice DTO25 provides power dissipation of at least 3W on the PCB, and a wide range of resistance values.
18th February 2015

PWM controller is suitable for cloud data storage equipment

PWM controller is suitable for cloud data storage equipment
  Designed for non-isolated, high-current PoL supplies, the ZSPM1501 single-phase true-digital power solution has been released by ZMDI.
18th February 2015


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