Chinese giant patents technology behind world's first solid state RF microwave oven
June 22, 2012 // Nick Flaherty
Chinese consumer electronics giant Midea has worked with Freescale Semiconductor to develop the world's first solid state microwave oven, using less power and giving a smaller footprint.
The solid state RF microwave oven has no magnetron or heavy transformer that has been the mainstay of microwave oven design since the first one was launched by Raytheon in 1947. Among key breakthroughs was the invention of an oscillation scheme that produces 2450 MHz using Freescale devices aimed at cell phone applications.
Moving to a solid state design allows more controllability and intelligence in the oven design and lower noise operation, as well as longer life, lower voltage operation, full DC operation capability and smaller footprint.
The design has seen seven key technology breakthroughs, each with a patent application, including four fundamental 'invention' patents. These include RF high-power synthesis technology, RF output power adjustable technology, RF microwave oven heating efficiency promotion technology, heating frequency automatic control technology, the technology of RF microwave feeding, RF power source load rigid lifting technology and RF microwave oven matching technology.
The first oven has three power levels including 150W, 300W and 600W output. Midea plans to continue research and development in order to launch higher output power microwave ovens using Freescale LDMOS solid state RF power semiconductor technology.
Established in 1968, Midea has grown from what was once a local workshop into a leading consumer appliances and air conditioning systems manufacturer with a global turnover of $22bn last year.
WSTS marks America up for 2015 boom
April 21, 2015
The market for semiconductors in the Americas region will grow by 15 percent in 2015, according to a revised estimate from ...
NFC makes e-Ink fashionable
Foxconn linked to startup's 52-Mpixel camera technology
If 3D printing was not enough
Embedded developers using risky open-source code to fix schedules, say analysts
Iron fluoride to triple energy storage?
April 21, 2015
Researchers the University of Wisconsin–Madison and Brookhaven National Laboratory have developed a novel X-ray imaging technique ...
EMEA PC shipments resume steady decline
Nohau to resell Icon Labs' security portfolio in Scandinavia
Distribution deal for Silex Technology wireless connectivity, with Arrow
- Smart Capacitive Design Tips
- Wireless MCUs and IoT
- Battery Management System Tutorial
- Deciding if Automated Test is right for your Company
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, DecaWave is offering EETimes Europe's readers the chance to win two TREK1000 kits to evaluate its Ultra-Wideband (UWB) indoor location and communication DW1000 chip in different real-time location system topologies.
Worth €947, the kit allow designers to prove a concept within hours and have a prototype ready in days. Based on the two-way ranging scheme, the kit lets you test...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.