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The key component of a microwave oven is the microwave generator, also called a magnetron, which is based on a high-frequency resonant power converter that drives a transformer followed by a voltage multiplier bridge to generate the high voltage (several kilovolts) required to drive the magnetron.

ST offers a range of trench-gate field-stop IGBTs and gate drivers that together with high-performance STM32 microcontrollers are ideal for the design of high-efficiency microwave generators. We also supply triacs and AC switches to drive the lamp and the motors for the turntable and fan, as well as a set of environmental sensors and LED and LCD display drivers, touchscreen controllers and proximity sensors for touch-less user interfaces.

Microwave oven block diagram

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Technical Documentation

    • Description Version Size Action
      AN4479
      12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE
      1.0
      1.08 MB
      PDF
      AN4260
      12 V, 150 mA non-isolated buck converter using the VIPER06XS, from the VIPer™ plus family
      4.2
      3.5 MB
      PDF
      AN5057
      12 V, 7.8 W isolated flyback converter based on VIPer114LS
      1.0
      2.34 MB
      PDF
      AN4924
      12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD
      1.0
      2.94 MB
      PDF
      AN4812
      15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters
      2.0
      2.43 MB
      PDF
      AN4830
      15 W, 5 V - 12 V double output, isolated flyback converter based on Viper37LE/D
      1.0
      3.13 MB
      PDF
      AN4941
      7 W dual output (-5 V/+7 V) non-isolated flyback converter with capacitive touch sensing using VIPer0P and STM32L052
      1.0
      3.43 MB
      PDF
      AN4722
      HTS221 digital humidity sensor: hardware guidelines for system integration
      1.0
      844.49 KB
      PDF
      AN2648
      Increasing the resolution of analog temperature sensors
      1.4
      161.7 KB
      PDF
      AN4836
      STEVAL-ISA174V1: VIPer0P 7 W double output non-isolated flyback
      2.0
      4.05 MB
      PDF
      AN4855
      STEVAL-ISA177V1 5 V/4.25 W non-isolated flyback demo with VIPer01
      2.0
      8.82 MB
      PDF
      AN4858
      STEVAL-ISA178V1 5 V/1 W 30 kHz buck demo with VIPer01
      1.0
      1.84 MB
      PDF
      AN4905
      STEVAL-ISA180V1 12 V/0.6 A isolated flyback demo with VIPer0P
      1.0
      2.55 MB
      PDF
      AN5081
      STEVAL-ISA195V1: 5 V/1.8 W 30 kHz buck demo with the VIPer11
      2.0
      4.1 MB
      PDF
      AN5072
      STEVAL-ISA196V1: VIPer11 5V/1.2A non-isolated flyback
      1.0
      4.21 MB
      PDF
      AN4419
      VIPER37HE: 15 W wide range single output evaluation board
      1.0
      1.42 MB
      PDF
      AN4479

      12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE

      AN4260

      12 V, 150 mA non-isolated buck converter using the VIPER06XS, from the VIPer™ plus family

      AN5057

      12 V, 7.8 W isolated flyback converter based on VIPer114LS

      AN4924

      12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD

      AN4812

      15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters

      AN4830

      15 W, 5 V - 12 V double output, isolated flyback converter based on Viper37LE/D

      AN4941

      7 W dual output (-5 V/+7 V) non-isolated flyback converter with capacitive touch sensing using VIPer0P and STM32L052

      AN4722

      HTS221 digital humidity sensor: hardware guidelines for system integration

      AN2648

      Increasing the resolution of analog temperature sensors

      AN4836

      STEVAL-ISA174V1: VIPer0P 7 W double output non-isolated flyback

      AN4855

      STEVAL-ISA177V1 5 V/4.25 W non-isolated flyback demo with VIPer01

      AN4858

      STEVAL-ISA178V1 5 V/1 W 30 kHz buck demo with VIPer01

      AN4905

      STEVAL-ISA180V1 12 V/0.6 A isolated flyback demo with VIPer0P

      AN5081

      STEVAL-ISA195V1: 5 V/1.8 W 30 kHz buck demo with the VIPer11

      AN5072

      STEVAL-ISA196V1: VIPer11 5V/1.2A non-isolated flyback

      AN4419

      VIPER37HE: 15 W wide range single output evaluation board

    • Description Version Size Action
      TN1219
      HTS221 digital humidity sensor: reference design implementation
      2.0
      367.08 KB
      PDF
      TN1218
      Interpreting humidity and temperature readings in the HTS221 digital humidity sensor
      4.0
      3.67 MB
      PDF
      TN1219

      HTS221 digital humidity sensor: reference design implementation

      TN1218

      Interpreting humidity and temperature readings in the HTS221 digital humidity sensor

Presentations & Training Material

    • Description Version Size Action
      ST MEMS Longevity Program 1.0
      471.09 KB
      PDF

      ST MEMS Longevity Program

Publications and Collaterals

    • Description Version Size Action
      Industrial MEMS motion sensors 1.0
      1.36 MB
      PDF

      Industrial MEMS motion sensors

    • Description Version Size Action
      VIPerPlus - Bring a Plus to your SMPS design 05.2020
      481.54 KB
      PDF
      VIPerPlus evaluation boards 05.2018
      1,002.52 KB
      PDF

      VIPerPlus - Bring a Plus to your SMPS design

      VIPerPlus evaluation boards

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.