Microwave Oven - Block Diagram, Design Solutions - STMicroelectronics

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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

Picture	Solution
	Insulated control of three AC loads up to 1 kW SL-PRIPM06701V1 Active

Insulated control of three AC loads up to 1 kW

SL-PRIPM06701V1

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	Resource title		Latest update

Application Notes (5 of 16)

	Resource title		Latest update
PDF	AN4479 12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE 1.0		13 Sep 2018	13 Sep 2018 AN4479 12 V, 15 W peak 20 W isolated flyback converter based on VIPer38LE 1.0
PDF	AN4260 12 V, 150 mA non-isolated buck converter using the VIPER06XS, from the VIPer™ plus family 4.2		13 Sep 2018	13 Sep 2018 AN4260 12 V, 150 mA non-isolated buck converter using the VIPER06XS, from the VIPer™ plus family 4.2
PDF	AN5057 12 V, 7.8 W isolated flyback converter based on VIPer114LS 1.0		13 Sep 2018	13 Sep 2018 AN5057 12 V, 7.8 W isolated flyback converter based on VIPer114LS 1.0
PDF	AN4924 12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD 1.0		13 Sep 2018	13 Sep 2018 AN4924 12 V, 8.4 W peak power 30 W isolated flyback converter using VIPer38HD 1.0
PDF	AN4812 15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters 2.0		26 Sep 2019	26 Sep 2019 AN4812 15 W, 12 V output, isolated flyback converter using Viper35HD device from the VIPer™ Plus family of high voltage converters 2.0
PDF	AN4830 15 W, 5 V - 12 V double output, isolated flyback converter based on Viper37LE/D 1.0		13 Sep 2018	13 Sep 2018 AN4830 15 W, 5 V - 12 V double output, isolated flyback converter based on Viper37LE/D 1.0
PDF	AN4941 7 W dual output (-5 V/+7 V) non-isolated flyback converter with capacitive touch sensing using VIPer0P and STM32L052 1.0		13 Sep 2018	13 Sep 2018 AN4941 7 W dual output (-5 V/+7 V) non-isolated flyback converter with capacitive touch sensing using VIPer0P and STM32L052 1.0
PDF	AN4722 HTS221 digital humidity sensor: hardware guidelines for system integration 1.0		28 Feb 2020	28 Feb 2020 AN4722 HTS221 digital humidity sensor: hardware guidelines for system integration 1.0
PDF	AN2648 Increasing the resolution of analog temperature sensors 1.4		28 Feb 2020	28 Feb 2020 AN2648 Increasing the resolution of analog temperature sensors 1.4
PDF	AN4836 STEVAL-ISA174V1: VIPer0P 7 W double output non-isolated flyback 2.0		13 Sep 2018	13 Sep 2018 AN4836 STEVAL-ISA174V1: VIPer0P 7 W double output non-isolated flyback 2.0
PDF	AN4855 STEVAL-ISA177V1 5 V/4.25 W non-isolated flyback demo with VIPer01 2.0		22 Jan 2020	22 Jan 2020 AN4855 STEVAL-ISA177V1 5 V/4.25 W non-isolated flyback demo with VIPer01 2.0
PDF	AN4858 STEVAL-ISA178V1 5 V/1 W 30 kHz buck demo with VIPer01 1.0		13 Sep 2018	13 Sep 2018 AN4858 STEVAL-ISA178V1 5 V/1 W 30 kHz buck demo with VIPer01 1.0
PDF	AN4905 STEVAL-ISA180V1 12 V/0.6 A isolated flyback demo with VIPer0P 1.0		13 Sep 2018	13 Sep 2018 AN4905 STEVAL-ISA180V1 12 V/0.6 A isolated flyback demo with VIPer0P 1.0
PDF	AN5081 STEVAL-ISA195V1: 5 V/1.8 W 30 kHz buck demo with the VIPer11 2.0		14 Jan 2019	14 Jan 2019 AN5081 STEVAL-ISA195V1: 5 V/1.8 W 30 kHz buck demo with the VIPer11 2.0
PDF	AN5072 STEVAL-ISA196V1: VIPer11 5V/1.2A non-isolated flyback 1.0		13 Sep 2018	13 Sep 2018 AN5072 STEVAL-ISA196V1: VIPer11 5V/1.2A non-isolated flyback 1.0
PDF	AN4419 VIPER37HE: 15 W wide range single output evaluation board 1.0		13 Sep 2018	13 Sep 2018 AN4419 VIPER37HE: 15 W wide range single output evaluation board 1.0

Technical Notes & Articles (2)

	Resource title		Latest update
PDF	TN1219 HTS221 digital humidity sensor: reference design implementation 2.0		28 Feb 2020	28 Feb 2020 TN1219 HTS221 digital humidity sensor: reference design implementation 2.0
PDF	TN1218 Interpreting humidity and temperature readings in the HTS221 digital humidity sensor 4.0		28 Feb 2020	28 Feb 2020 TN1218 Interpreting humidity and temperature readings in the HTS221 digital humidity sensor 4.0

Presentations (2)

	Resource title		Latest update
PDF	ST sensors longevity program 2.0		29 Jan 2021	29 Jan 2021 ST sensors longevity program 2.0
PDF	ST25 NFC presentation for Home Appliance applications 1.0		27 May 2020	27 May 2020 ST25 NFC presentation for Home Appliance applications 1.0

Flyers (1)

	Resource title		Latest update
PDF	Industrial MEMS motion sensors 1.0		06 Feb 2020	06 Feb 2020 Industrial MEMS motion sensors 1.0

Brochures (2)

	Resource title		Latest update
PDF	VIPerPlus - Bring a Plus to your SMPS design 05.2020		14 May 2020	14 May 2020 VIPerPlus - Bring a Plus to your SMPS design 05.2020
PDF	VIPerPlus evaluation boards 05.2018		23 Aug 2018	23 Aug 2018 VIPerPlus evaluation boards 05.2018

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DC/DC AC/DC

Input

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

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

Output Power

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

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

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