The AC power supplied to and used by household and commercial buildings in the USA is primarily 120VAC. This voltage is suitable for most electrical and electronic equipment in the home or office, but for the higher power requirements of electric driers, air conditioning and electric ovens, 208VAC or 240VAC is also available.
In larger industrial properties, in addition to 208VAC and 120VAC, 480VAC three-phase is supplied to the building in a “WYE” (or Y) configuration. Using 480VAC three-phase to power larger electrical equipment like fork lift battery chargers and heavy machinery allows less current to be drawn by the load, thus enabling the use of lighter gauge wire. In addition, the current is balanced equally in each phase. This power disctribution scheme improves power distribution efficiency.
This blog article from TDK Lambda delves further into this topic, explaining how 277VAC comes about and how it’s used in industrial applications. The article also highlights a few of TDK Lambda’s power supply solutions that are well-suited for use in 277VAC input applications. You can read the entire blog post here: Where and why is a 277VAC input used in the USA?
For more information about TDK Lambda’s products, or to discuss your current power design, please contact Cover 2 Sales for assistance!
MARK YOUR CALENDARS!!!
All Flex is a domestic manufacturer of flexible circuits and flexible heaters, providing value-add services like surface mount and through-hole assembly, testing, design, and engineering support. All Flex hosts monthly web seminars to help educate customers on flexible technologies and flex products and to provide helpful design information about how to best use flexible circuits and heaters.
At 1:00pm EDT on June 25, 2020 All Flex will be hosting a seminar entitled Flexible Heaters – Maximizing Thermal System Performance. This seminar will cover design issues and techniques when working with flexible heaters.
To register for the webinar, please follow this link.
And for more information about All Flex, flex circuits or flex heaters, please contact Cover 2 Sales.
The series offers an input range of 9V to 53Vdc and adjustable outputs from 9.6V to 48V. Special care was taken in the design of the i7C to ensure a seamless transition from buck to boost operation.
With efficiencies of up to 97%, power losses are minimized allowing the product to operate and deliver high output power in demanding thermal environments. Under light load conditions, the i7C’s control techniques significantly reduce power dissipation. A 5mA input current draw is typical under zero load conditions. And the input current can be further reduced to 0.25mA (typ) when the remote on-off is utilized. This extends the amount of time battery powered equipment can remain functional during periods of non-peak operation.
For more information on the i7C series – or any of TDK Lambda’s power converters – please contact Cover 2 Sales.
Operating power supplies in parallel is commonly used to increase the available output power or to provide system redundancy in the event of a power supply failure. Not all power supplies can be connected parallel, however. So before connecting power supplies in this manner make sure to consult the manufacturer’s documentation.
You should also review TDK Lambda’s Power Blog for their latest article, “Avoiding noise issues when operating power supplies in parallel“.
TDK Lambda’s power blog contains numerous articles like this, focusing on different aspects of power system design. Please make sure to visit often for the latest technical information! Or, follow them on Linked In so you don’t miss any posts.
And, as always, you can contact Cover 2 Sales for assistance in selecting a power supply for your design!
TDK-Lambda announces the launch of their brand new website at www.us.lambda.tdk.com. The website offers outstanding product solutions from the #1 global provider of industrial and medical solutions (per IHS Markit).
In addition to technical specifications on their power products, TDK Lambda’s new website also includes a Resource Center with over 130 technical power blogs and product and application videos. There is also an Application section full of information about the selection and design of power solutions for a variety of applications.
The new website includes enhanced features such as parametric search and real-time distribution inventory status. And it is mobile and tablet-friendly, so it can be accessed on any platform or device.
There is a “Contact Us” option on the website, however please contact Cover 2 Sales, TDK Lambda’s manufacturer’s representative for the Chesapeake (MD/VA/DC) territory, for any sales or technical questions you might have!