Design Automation


Power supply reference design

19 August 2009 Design Automation

Power Integrations has released a new design engineering report (DER-227) which details the design of a 3 W power supply circuit that consumes just 10 mW during no-load operation. This low power consumption within the power supply leaves much more power available for use by electronic systems designed to comply with the standby power limits mandated by regulations such as the European Union's Ecodesign Directive for Energy-Using Products (EuP).

The EuP standard will limit standby power consumption to 500 mW, and many eco-minded manufacturers of consumer products and appliances are choosing even lower standby power budgets of 100 mW, 50 mW or even 30 mW. A standby power supply that consumes only 10 mW at zero load allows a greater margin for other leaky circuit components, such as input filters, capacitors and bias components, while still providing the power required to support system standby activities.

The power circuit described in DER-227 is based on Power Integrations' LNK363DN, a member of the LinkSwitch-XT offline switcher IC family in an SO-8 package. This 3 W, single-output, isolated power supply operates from a universal 85 to 265 V a.c. input, delivering 5 V at up to 0,6 A. It meets EN55022B/CISPR22B limits without the need for a Y capacitor, and meets the efficiency requirements of the EuP directive and Energy Star EPS v 2.0.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Online Tibbo BASIC code generator
29 May 2020, RF Design , Design Automation
Cody is a template project generator that produces working Tibbo BASIC code from the information provided via a few simple-to-understand configuration screens. This web-based app allows you to quickly ...

Read more...
Bourns launches new mobile app
25 March 2020, Electrocomp , Design Automation
The new Bourns app is now available free to download for iOS and Android at the Apple App Store and at the Google Play Store. Mobile apps are very popular marketing tools these days with over 50 million ...

Read more...
Guide for designing GUIs, for novices to experts
29 April 2020, Avnet South Africa , Design Automation
The TouchGFX team at STMicroelectronics recently published TouchGFX Documentation, a website that targets developers working on their first embedded graphical user interface (GUI) as well as those with ...

Read more...
Free PADS software for students and instructors
29 April 2020 , Design Automation
As part of its ongoing investment in higher education, Mentor, a Siemens business, announced that students and instructors can download a free student edition of its premium PADS Professional Design Suite ...

Read more...
Embedding a 3D STEP model in a footprint
29 April 2020, EDA Technologies , Design Automation
Integrating mechanical design workflows into electrical design tools has become a necessary component of today’s successful PCB design processes. But transferring inaccurate design data back and forth ...

Read more...
STM32CubeMonitor for runtime variable monitoring
25 March 2020, Altron Arrow , Design Automation
The STM32CubeMonitor family of tools helps to fine-tune and diagnose STM32 applications at runtime by reading and visualising their variables in real time. In addition to specialised versions (power, ...

Read more...
STM32CubeMonitor for runtime variable monitoring
26 February 2020, Altron Arrow , Design Automation
The STM32CubeMonitor family of tools helps to fine-tune and diagnose STM32 applications at runtime by reading and visualising their variables in real time. In addition to specialised versions (power, ...

Read more...
STMicro enhances TouchGFX software framework
29 January 2020, EBV Electrolink , Design Automation
STMicroelectronics has added new features to the TouchGFX software framework for STM32 microcontrollers (MCUs), streamlining creation of attention-grabbing user interfaces for domestic appliances, home ...

Read more...
STM8 development boards in Nucleo-32 format
25 November 2019, EBV Electrolink , Design Automation
STMicroelectronics is making design starts using 8-bit STM8 microcontrollers (MCUs) faster, more affordable, and more accessible by introducing new development boards in the Nucleo-32 form factor. The ...

Read more...
New edition of Altium Designer announced
23 October 2019, EDA Technologies , Design Automation
Altium recently announced the newest version of Altium Designer, a complete software environment for the design and realisation of printed circuit boards (PCB). The latest release, Altium Designer 20, ...

Read more...