Voltage regulation

Single-Stage, High Power Factor LED Driver-Controller from Diodes Incorporated with Mixed-Mode Dimming

Retrieved on: 
Tuesday, May 21, 2019
Technology, Hardware, Semiconductor, Electromagnetism, Electrical engineering, Electronic engineering, Electronics manufacturing, Printed circuit board, MOSFET, Power electronics, Voltage regulation

The AL1665 is designed to drive an external MOSFET to control LED loads and maintain a high power factor.

Key Points: 
  • The AL1665 is designed to drive an external MOSFET to control LED loads and maintain a high power factor.
  • It provides a compact and efficient solution that helps minimize the use of additional components and maintains high switching efficiency.
  • With PSR, developers can design smaller solutions using less PCB area and achieve lower bill of material costs, while delivering constant current regulation to high-power LED lighting applications.
  • The device employs boundary condition mode (BCM) conversion with valley switching to minimize losses and deliver high efficiency with low EMI.

Efficient Power Conversion (EPC) Expands 100 V eGaN® FET Family, Offering Designers Best-in-Class Performance and Cost for 48 V DC-DC Conversion

Retrieved on: 
Wednesday, April 3, 2019
Technology, Consumer electronics, Hardware, Other Technology, Semiconductor, Electrical engineering, Electromagnetism, Voltage regulation, Power electronics, Field-effect transistor, Buck converter, Electric power conversion, Power supplies, Electronic circuits, DC-to-DC converter

Our new family of 100 V products demonstrates that in all 48 V topologies, the highest efficiency and lowest cost is achieved with GaN FETs and ICs.

Key Points: 
  • Our new family of 100 V products demonstrates that in all 48 V topologies, the highest efficiency and lowest cost is achieved with GaN FETs and ICs.
  • The EPC9138 demonstration board is a 400 kHz switching frequency, 48 VIN, 15 A output current, buck converter featuring the 100 V EPC2053 .
  • Both the EPC9138 and EPC9141 beat the best silicon-based solutions in power density and offer exceptional performance, small size, and low cost.
  • Also offered are standard half-bridge development boards available to support easy in-circuit performance evaluation of each of the 100 V family devices.

New Dual LDO with High PSRR and Low Quiescent Current from Diodes Incorporated is Aimed at Primary Cell Applications

Retrieved on: 
Friday, March 29, 2019
Technology, Consumer electronics, Hardware, Semiconductor, Manufacturing, Automotive Manufacturing, Electromagnetism, Electrical engineering, Power supplies, Electronic engineering, Power supply rejection ratio, Voltage regulation, Electric battery, Analog circuits, Low-dropout regulator, Draft:Switching Noise Jitter

The AP7345D family features an excellent PSRR of 75dB at 1kHz, across the full output voltage range.

Key Points: 
  • The AP7345D family features an excellent PSRR of 75dB at 1kHz, across the full output voltage range.
  • The input voltage range extends from 1.7V to 5.25V and each of the two channels can deliver up to 300mA, guaranteed.
  • The addition of an LDO enables more of the primary cells voltage to be used, extending the useful lifetime between battery changes.
  • In addition, choosing an LDO with high PSRR ensures a steady and regulated supply voltage to sensitive integrated circuits.

New 3-Phase Gate Drive Solution from Pre-Switch Doubles Power; Boosts Switching Speeds by up to 20x; Increases eV Range by 5-12%

Retrieved on: 
Wednesday, March 20, 2019
Energy, Alternative energy, Technology, Software, Semiconductor, Electromagnetism, Electrical engineering, Electric power, Electric power conversion, Voltage regulation, Power supplies, Inverters, Power inverter, Switch, Switched-mode power supply, Power electronics

These switching losses are responsible for a large percentage of power converter losses.

Key Points: 
  • These switching losses are responsible for a large percentage of power converter losses.
  • In contrast, soft-switching minimizes switching losses but is has never been successfully-implemented for DC/AC systems with varying input voltage, temperature and load conditions.
  • Pre-Switch technology increases eV range, reduces battery size, shrinks power converter size and cost, while minimizing cooling requirements.
  • Pre-Switch, the Pre-Switch logo and other trademarks or service names are the trademarks of Pre-Switch, Inc.
    View source version on businesswire.com: https://www.businesswire.com/news/home/20190320005638/en/

Toshiba’s New Small Surface Mount LDO Regulators Lower Power Consumption and Bring Longer Operating Times to Battery-driven Devices

Retrieved on: 
Wednesday, March 20, 2019
Technology, Consumer electronics, Hardware, Software, Office Products, Mobile, Wireless, Retail, Specialty, Companies, Voltage regulation, Economy of Japan, Electronic engineering, Low-dropout regulator, Toshiba, Technology, Consumer electronics, Hardware, Software, Office Products, Mobile, Wireless, Retail, Specialty, Companies, Voltage regulation, Economy of Japan, Electronic engineering, Low-dropout regulator, Toshiba

Toshiba America Electronic Components, Inc. (Toshiba) today announced two new series of small surface mount LDO regulators for application in the power supply of mobile devices, imaging and audio-visual products.

Key Points: 
  • Toshiba America Electronic Components, Inc. (Toshiba) today announced two new series of small surface mount LDO regulators for application in the power supply of mobile devices, imaging and audio-visual products.
  • The TCR5BM and TCR8BM series are both available with VOUT as low as 0.8V, or as high as 3.6V.
  • Quiescent current is about 50% lower than other high current LDO regulators in the market[2], realizing lower power consumption by devices and longer operating times for battery-driven devices.
  • Both series are housed in the small surface mount 1.2x1.2mm DFN5B[3] package, which is excellent for space constrained designs.

Toshiba’s New Small Surface Mount LDO Regulators Lower Power Consumption and Bring Longer Operating Times to Battery-driven Devices

Retrieved on: 
Wednesday, March 20, 2019
Technology, Consumer electronics, Hardware, Audio, Video, Photography, Semiconductor, Mobile, Wireless, Manufacturing, Other Manufacturing, Electronic engineering, Electronics, Electromagnetism, Voltage regulation, Low-dropout regulator, Integrated circuits, Toshiba, Ice, Power supply

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched two new series of small surface mount LDO regulators for application in the power supply of mobile devices, imaging and audio-visual products.

Key Points: 
  • Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched two new series of small surface mount LDO regulators for application in the power supply of mobile devices, imaging and audio-visual products.
  • View the full release here: https://www.businesswire.com/news/home/20190319005402/en/
    Toshiba: New small surface mount LDO regulators TCR5BM and TCR8BM series for application in the power supply of mobile devices, imaging and audio-visual products.
  • Quiescent current is about 50% lower than other high current LDO regulators in the market[2], realizing lower power consumption by devices and longer operating times for battery-driven devices.
  • Both series are housed in the small surface mount 1.2x1.2mm DFN5B[3] package, which is excellent for space constrained designs.

Industry's First Highly Integrated USB-C Buck Charger from Maxim Reduces Size by 30 Percent

Retrieved on: 
Monday, March 18, 2019
Energy storage, Electromagnetism, Energy, Articles, USB, Inductor, Voltage regulation, Capacitor, Power supplies

A wide range of consumer electronic devices are migrating to USB-C interfaces to support rapidly advancing communication and battery-charging capabilities, as well as smaller design size.

Key Points: 
  • A wide range of consumer electronic devices are migrating to USB-C interfaces to support rapidly advancing communication and battery-charging capabilities, as well as smaller design size.
  • In current designs, the host microprocessor is needed to detect the current level and configure the charger's input current limit.
  • Reduces the size of an inductor and a capacitor due to a high switching frequency of 2MHz/4MHz, resulting in a solution size that is 30 percent smaller than the closest competitive device.
  • High Efficiency: High-efficiency buck reduces heat dissipation with more than 93 percent efficiency and up to 3A charging capability.

TI's smart AC/DC linear regulator achieves breakthrough in efficiency and power density

Retrieved on: 
Monday, March 18, 2019
Electromagnetism, Voltage regulation, Electrical engineering, Electronic engineering, Linear regulator, Zener diode, Power supply, Capacitor, Voltage regulator, Low-dropout regulator

DALLAS, March 18, 2019 /PRNewswire/ --Texas Instruments (TI) (NASDAQ: TXN) today expanded its broad portfolio of over 500 linear regulators by introducing a first-of-its-kind smart AC/DC linear regulator.

Key Points: 
  • DALLAS, March 18, 2019 /PRNewswire/ --Texas Instruments (TI) (NASDAQ: TXN) today expanded its broad portfolio of over 500 linear regulators by introducing a first-of-its-kind smart AC/DC linear regulator.
  • With 75 percent higher efficiency and two times the power density of other linear regulators, this device achieves the best balance between high efficiency and ultra-low noise while shrinking power-supply size.
  • The TPS7A78 is a nonisolated linear regulator that delivers up to 0.5 W from AC to DC with smaller, fewer components.
  • This design results in higher efficiency and a reduced capacitor size compared to linear regulators in traditional capacitor-drop solutions utilizing a Zener diode.To learn more watch the video, " What is a smart AC/DC linear regulator? "

Maxim's Buck Converters and Controllers Deliver Smallest, Most Efficient High-Voltage Automotive Power Solutions

Retrieved on: 
Tuesday, January 8, 2019
Voltage regulation, Buck converter, Choppers, IHS Markit

With a package size of 3.5mm x 3.75mm, Maxim's buck converters offer the industry's smallest solution size.

Key Points: 
  • With a package size of 3.5mm x 3.75mm, Maxim's buck converters offer the industry's smallest solution size.
  • "Power semiconductors in automotive are projected to grow to more than $13.7 billion by 2023," said Kevin Anderson, senior analyst for power ICsat IHS Markit.
  • High-power buck converters and multiphase, high-power buck controllers play a critical role in enabling this technology."
  • We are empowering design innovation for our automotive, industrial, healthcare, mobile consumer and cloud data center customers to deliver industry-leading solutions that help change the world.

Active-Semi’s First Wearable PMIC in the ActiveCiPSTM Series

Retrieved on: 
Tuesday, January 8, 2019
Technology, Hardware, Software, Semiconductor, Electromagnetism, Electrical engineering, Power electronics, Electric power conversion, Voltage regulation, Power supplies, Choppers, DC-to-DC converter, Boost converter, Analog circuits, Voltage regulator

The ACT81460 integrates a full solution for the wearable market with industry leading standby quiescent current designed to prolong battery life.

Key Points: 
  • The ACT81460 integrates a full solution for the wearable market with industry leading standby quiescent current designed to prolong battery life.
  • It also includes a programmable input current limit, dynamic voltage limit and other configurable charging parameters such as battery termination voltage and currents, charge rate, battery temperature sense.
  • The fully integrated, 3.3MHz switching frequency DC/DC converters enable the use of small external components and a full range of protection features.
  • The integrated high voltage Boost converter can be used for haptics/vibrations, speaker drivers for audio, or LED backlighting.