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Optimizing Power Efficiency in POL Regulators Using SLLM Control

From ROHM Semiconductor, USA LLC
 

 

Efficiency ratings for power supplies at full load do not adequately reflect the unit's power consumption under actual operation conditions. To extend the length of operation of portable products on a single battery charge, power must be reduced in all operating modes. Improved efficiency at all operating points including more typical situations such as very light loads is an important concern in the design of next generation "green" prod¬ucts.

Products & Services
Small-signal bipolar transistors (BJT) are semiconductors that amplify small AC or DC signals. They consist of a base n-type or p-type layer sandwiched between emitter and collector layers of the opposite type. Search by Specification | Learn more about Small-signal Bipolar Transistors (BJT)
Gate drivers are electronic circuits that apply correct power levels to metal-oxide field-effect transistors (MOSFETs) and insulated gate bipolar transistors (IGBTs). Search by Specification | Learn more about Gate Drivers
Charge pumps are circuits that generate higher voltages from low voltage inputs by using capacitors as storage elements. They are used in notebook computers and mobile phones. Learn more about Charge Pumps
IC bus interfaces and bus controllers or bus masters are interfaces between most standard parallel-bus microcontrollers or microprocessors and the serial bus. Learn more about IC Bus Interfaces and Controllers
RF transistors are designed to handle high-power radio frequency (RF) signals in devices such as stereo amplifiers, radio transmitters, and television monitors. Search by Specification | Learn more about RF Transistors
Product Announcements
ROHM Semiconductor, USA LLC - Switching Regulators Optimize Power Efficiency
The BD91x Series of step-down switching regulators combine ROHM's propriety SLLM™ (Simple Light Load Mode) technology with current-mode PWM control to provide exceptional load regulation and... (read more)
Atmel Corporation - Ultra-low Power ARM-based MCUs w/ 100nA Power-down
High-performance, ultra-low power ARM7TDMI®-based microcontrollers, the AT91SAM7L series, embedding power switches controlling multiple power islands and programmable voltage regulators to reduce... (read more)
Utility Systems Technologies, Inc. - Energy-Saving Power Conditioners
Many small power conditioners or voltage regulators have operating electrical efficiencies below 60% at low load. They are hot and noisy - all signs energy is being wasted. The Mini-EVR power... (read more)
Premier Magnetics, Inc. - Switch-Mode Power Transformers
Premier Magnetics' offline switch-mode transformers were designed for use with Power Integrations' TOPxxx series offline PWM switching regulators in the flyback buck-boost circuit configuration. This... (read more)
TAT Pumps, Inc. - Portable Oil Change Unit
New! Portable Oil Change Unit Model 640 For FAST, Clean Oil Changes on: Boats Automobiles Aircraft Mowers Trucks Machinery Construction Equipment Also good for draining... (read more)
TDK-Lambda Americas Inc., Low Power Division - 7-Amp POL Converter in Tiny SIP Package
TDK-Lambda expanded its range of point-of-load (POL) DC-DC converters with the launch of the iBD series of 7-Amp non-isolated, single- inline-package (SIP), thru-hole mounted devices. (read more)
Utility Systems Technologies, Inc. - Eco-Friendly Voltage Sag Protection
Voltage sag protection for sensitive equipment can now be 99% efficient and eco-friendly. Compared to a UPS, the Sag Fighter power conditioner can reduce energy consumption by 8 to 20% and eliminate... (read more)
Utility Systems Technologies, Inc. - Energy Efficiency & Power Quality in Schools
Free Whitepaper - Energy Efficiency & Power Quality in Schools Today's schools have millions of dollars invested in electronic devices and technologies intended to save energy and increase... (read more)
Utility Systems Technologies, Inc. - Industrial-Grade 3 Phase Voltage Sag Protection
Protecting industrial operations from voltage sags with computer-grade solutions is so expensive and maintenance intensive that many businesses cannot justify sag protection. The Sag Fighter active... (read more)
Beta Transformer Technology Corp. - Switch Mode Transformers
Designed and built to meet the ruggedized requirements of MIL-PRF-27 for use in high reliability Aerospace, Military, and Extreme Industrial control systems. (read more)
Topics of Interest
In portable electronic products, reducing the power consumption to provide the user with increased battery life is one of today's critical design considerations. The liquid crystal display (LCD) and... (Read More)
The challenge for any manufacturer of handheld and portable battery-operated equipment is to extend product life. By maximizing the efficiency of each component in the design, overall product... (Read More)
The increased use of nonlinear electronic equipment has become a concern in most utility power systems. Nonlinear loads draw current discontinuously during the cycle of the input voltage waveform and... (Read More)
Few components in portable system design have as pervasive an impact on the user's experience with the product as the power source and the system used to charge it. The length of time the battery... (Read More)
Rapidly maturing industrial laser applications are placing ever-tighter constraints on spectral width and wavelength emission stability over varying operating temperatures of high power diode pump... (Read More)
See more product announcements for Small-signal Bipolar Transistors (BJT)
NPN and PNP Monolithic Dual Transistors

NPN and PNP Monolithic Dual Transistors
Linear Integrated Systems, Inc.


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Advanced Power Electronics Corp goes Green

Advanced Power Electronics Corp goes Green
Advanced Power Electronics Corp. USA


11 See more product announcements for Small-signal Bipolar Transistors (BJT)