Microwave Ovens

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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.

Part Number	Description
STEVAL-ISA182V1	8.4 W / 30 W peak power offline flyback converter using VIPER38HD	Quick view Key Features US input range: 85 – 132 V_AC , frequency: 50 – 60 Hz Output voltage / current: 12 V / 0.7 A (2.5 A peak) Very compact size Standby mains consumption: lower than 25 mW at 115 V_AC Min. active mode efficiency: 81.14% Min. active mode at 10% load efficiency: 71.14% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA178V1	5 V / 200 mA high voltage buck-converter based on VIPer01	Quick view Key Features Five-star energy efficiency for operation under no load (P_{IN_no_load} < 20 mW @ 230 V_AC ) Meets ErP Lot 6 Tier 2 requirements for household and office equipment Compliant with the 10% load efficiency and 4-point average active-mode efficiency targets prescribed by the European CoC ver. 5 Tier 2 Meets IEC55022 Class B conducted EMI even with reduced EMI filter, thanks to the frequency jittering feature VIPer01 800V avalanche rugged technology and embedded protections ensure enhanced system reliability RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA196V1	5 V / 1.2 A non-isolated flyback converter using VIPerPlus?VIPer114LS	Quick view Key Features Universal AC main input voltage range: 85V_AC to 265V_AC Output voltage: 5 V Output current: 1.2 A Rated output power: 6 W No load input power @230 V_AC : < 10 mW Active mode efficiency: > 78% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA197V1	12 V, 7.8 W isolated flyback converter based on VIPer114LS	Quick view Key Features Universal input mains range: 90 – 265V_AC , frequency: 50 – 60 Hz Output voltage: 12 V Output current: 0.65 A Very compact size Stand-by mains consumption: < 20 mW at 230V_AC Average efficiency: > 81% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA177V1	5 V, 0.85 A flyback converter using VIPer™ Plus - VIPer01	Quick view Key Features Universal AC main input voltage range: 85V_AC to 265V_AC Output range: 5 V / 0.85 A Rated output power: 4.25 W Input power in standby @ 230 V_AC : < 9 mW Active mode efficiency: > 74% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA180V1	12 V - 0.6 A flyback isolated converter using VIPer™ Plus - VIPer0P	Quick view Key Features Universal AC main input voltage range: 85 to 265 V_AC Output range: 12 V - 0.6 A Rated output power: 7.2 W Input power in standby @ 230 V_AC : less than 18 mW Active mode efficiency: > 80% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA192V1	7 W dual output flyback converter with standby managed by capacitive touch using VIPer0P and STM32L	Quick view Key Features Smart standby architecture using the zero power mode (ZPM) for capacitive touch sensing in consumer electronics applications Enhanced system reliability thanks to VIPer0P 800 V avalanche rugged technology and its embedded protection Minimized system input power consumption: less than 30 mW at 230 V_AC in ZPM IEC55022 Class B conducted EMI compliant, even with reduced EMI filter, thanks to the frequency jittering feature IEC61000-4-2 (ESD), IEC61000-4-4 (EFT) and IEC61000-4-5 (Surge) compliant RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-GLA001V1	Triac and AC switch insulated control evaluation board	Quick view Key Features Insulated control of three different AC switches used to drive AC loads up to 1 kW (230 Vrms) for residential appliances Interface with STM32 Nucleo-64 development board Three control modes available thanks to STM32 Nucleo-64 firmware (continuous or pulse gate current, timer option and phase control) Easy to configure through user-friendly interface Compatible with any external microcontroller Input voltage range: 90 V_AC to 265 V_AC 50 / 60 Hz Operating temperature: 0 °C to 60 °C 5 V and 3.3 V insulated power supply Low standby power losses (< 300 mW) Criteria A @ 2 kV IEC 61000-4-4 Criteria B @ 4 kV IEC 61000-4-4 RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA115V1	12 V, 150 mA non-isolated buck converter using VIPer™ Plus - VIPER06XS	Quick view Key Features Universal input mains range: input voltage: 90 VAC - 264 VAC frequency: 45 Hz - 65 Hz Single-output voltage: 12 V @ 0.15 A continuous operation Standby mains consumption: < 50 mW @ 265 VAC Average efficiency: > 75% Fully protected against faults (overload, feedback disconnection and overheating) EMI: in accordance with EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA140V1	15W, 12V output, isolated flyback converter using VIPer™ Plus - VIPER37HE	Quick view Key Features AC Main Input voltage range: 100 V_AC to 265 V_AC Mains frequency (f_L ): 50 Hz / 60 Hz Output voltage typ: 12 V Output current: 1.25 A Output ripple voltage: 50 mV Rated output power: 15 W Input power in standby @230 V_AC : 50 mW Active mode efficiency: 78% Ambient operating temperature: 60 °C RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA153V1	12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE	Quick view Key Features Universal input mains range: 90 – 265 V_AC frequency: 50 - 60 Hz Output voltage/current: 12 V/1.25 A (1.65 A peak) Very compact size Standby mains consumption: lower than 30 mW at 230 V_AC Minimum active mode efficiency: 81.55% Minimum active mode at 10% load efficiency: 71.55% EMI: in accordance with EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA171V1	12 V - 15 W quasi resonant flyback converter based on the VIPER35HD	Quick view Key Features Wide input voltage range: 90 V_AC to 264 V_AC Output voltage: 12 V Output current: 1.25 A Rated output power: 15 W Quasi resonant operation Input power standby @ 230 V_AC : < 30 mW Active mode efficiency: > 82% EMI: pre-compliance with EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA174V1	7 W dual output offline flyback converter for home appliances using VIPer0P	Quick view Key Features Zero-power input consumption ratified as per IEC62301 Clause 4.5 (P_{IN_ZPM} < 5 mW at 230 V_AC ) Negative output voltage easily set through the voltage divider Five-star energy efficiency when operating with no load (P_{IN_no_load} < 10 mW at 230 V_AC ) Meets ErP Lot 6 Tier 2 requirements for household and office equipment Meets European regulation 1275/2008 regarding eco-design requirements for standby and off-mode electric power consumption for household and office equipment Compliant with the ErP Lot 6 Tier 2 requirements in off-mode Compliant with the 10% load efficiency and 4-point average active-mode efficiency targets prescribed by the European CoC ver. 5 Tier 2 Meets IEC55022 Class B conducted EMI even with reduced EMI filter, thanks to the frequency jittering feature VIPer0P 800 V avalanche rugged technology and its embedded protections ensure enhanced system reliability RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA184V1	5V/1.2A 12V/750mA double output flyback converter using VIPER37LD	Quick view Key Features Universal input mains range: 85 – 265 V_AC ; frequency: 50 – 60 Hz Output voltage 1: 5 V / 1.2 A Output voltage 2: 12 V / 0.75 A Very compact size Standby mains consumption: < 40 mW at 230 V_AC Average efficiency: > 75% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber
STEVAL-ISA195V1	5 V / 0.36 A buck converter using VIPerPlus ? VIPer11	Quick view Key Features Universal AC main input voltage range: 85 V_AC to 265 V_AC Output range: 5 V / 0.36 A Rated output power: 1.8 W Input power in standby at 230 V_AC : less than 18 mW Active mode efficiency: > 65% EMI: according to EN55022-Class-B RoHS compliant Show More Product Details Download databrief IMAGE FEATURED RESOURCES Schematics BOM Gerber

Part Number

STEVAL-ISA182V1

8.4 W / 30 W peak power offline flyback converter using VIPER38HD

Quick view

Key Features

US input range: 85 – 132 V_AC , frequency: 50 – 60 Hz
Output voltage / current: 12 V / 0.7 A (2.5 A peak)
Very compact size
Standby mains consumption: lower than 25 mW at 115 V_AC
Min. active mode efficiency: 81.14%
Min. active mode at 10% load efficiency: 71.14%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA178V1

5 V / 200 mA high voltage buck-converter based on VIPer01

Quick view

Key Features

Five-star energy efficiency for operation under no load (P_{IN_no_load} < 20 mW @ 230 V_AC )
Meets ErP Lot 6 Tier 2 requirements for household and office equipment
Compliant with the 10% load efficiency and 4-point average active-mode efficiency targets prescribed by the European CoC ver. 5 Tier 2
Meets IEC55022 Class B conducted EMI even with reduced EMI filter, thanks to the frequency jittering feature
VIPer01 800V avalanche rugged technology and embedded protections ensure enhanced system reliability
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA196V1

5 V / 1.2 A non-isolated flyback converter using VIPerPlus?VIPer114LS

Quick view

Key Features

Universal AC main input voltage range: 85V_AC to 265V_AC
Output voltage: 5 V
Output current: 1.2 A
Rated output power: 6 W
No load input power @230 V_AC : < 10 mW
Active mode efficiency: > 78%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA197V1

12 V, 7.8 W isolated flyback converter based on VIPer114LS

Quick view

Key Features

Universal input mains range: 90 – 265V_AC , frequency: 50 – 60 Hz
Output voltage: 12 V
Output current: 0.65 A
Very compact size
Stand-by mains consumption: < 20 mW at 230V_AC
Average efficiency: > 81%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA177V1

5 V, 0.85 A flyback converter using VIPer™ Plus - VIPer01

Quick view

Key Features

Universal AC main input voltage range: 85V_AC to 265V_AC
Output range: 5 V / 0.85 A
Rated output power: 4.25 W
Input power in standby @ 230 V_AC : < 9 mW
Active mode efficiency: > 74%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA180V1

12 V - 0.6 A flyback isolated converter using VIPer™ Plus - VIPer0P

Quick view

Key Features

Universal AC main input voltage range: 85 to 265 V_AC
Output range: 12 V - 0.6 A
Rated output power: 7.2 W
Input power in standby @ 230 V_AC : less than 18 mW
Active mode efficiency: > 80%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA192V1

7 W dual output flyback converter with standby managed by capacitive touch using VIPer0P and STM32L

Quick view

Key Features

Smart standby architecture using the zero power mode (ZPM) for capacitive touch sensing in consumer electronics applications
Enhanced system reliability thanks to VIPer0P 800 V avalanche rugged technology and its embedded protection
Minimized system input power consumption: less than 30 mW at 230 V_AC in ZPM
IEC55022 Class B conducted EMI compliant, even with reduced EMI filter, thanks to the frequency jittering feature
IEC61000-4-2 (ESD), IEC61000-4-4 (EFT) and IEC61000-4-5 (Surge) compliant
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-GLA001V1

Triac and AC switch insulated control evaluation board

Quick view

Key Features

Insulated control of three different AC switches used to drive AC loads up to 1 kW (230 Vrms) for residential appliances
Interface with STM32 Nucleo-64 development board
Three control modes available thanks to STM32 Nucleo-64 firmware (continuous or pulse gate current, timer option and phase control)
Easy to configure through user-friendly interface
Compatible with any external microcontroller
Input voltage range: 90 V_AC to 265 V_AC 50 / 60 Hz
Operating temperature: 0 °C to 60 °C
5 V and 3.3 V insulated power supply
Low standby power losses (< 300 mW)
Criteria A @ 2 kV IEC 61000-4-4
Criteria B @ 4 kV IEC 61000-4-4
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA115V1

12 V, 150 mA non-isolated buck converter using VIPer™ Plus - VIPER06XS

Quick view

Key Features

Universal input mains range:
- input voltage: 90 VAC - 264 VAC
- frequency: 45 Hz - 65 Hz
Single-output voltage: 12 V @ 0.15 A continuous operation
Standby mains consumption: < 50 mW @ 265 VAC
Average efficiency: > 75%
Fully protected against faults (overload, feedback disconnection and overheating)
EMI: in accordance with EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA140V1

15W, 12V output, isolated flyback converter using VIPer™ Plus - VIPER37HE

Quick view

Key Features

AC Main Input voltage range: 100 V_AC to 265 V_AC
Mains frequency (f_L ): 50 Hz / 60 Hz
Output voltage typ: 12 V
Output current: 1.25 A
Output ripple voltage: 50 mV
Rated output power: 15 W
Input power in standby @230 V_AC : 50 mW
Active mode efficiency: 78%
Ambient operating temperature: 60 °C
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA153V1

12 V, 15 W (20 W peak) isolated flyback converter based on the VIPER38LE

Quick view

Key Features

Universal input mains range: 90 – 265 V_AC frequency: 50 - 60 Hz
Output voltage/current: 12 V/1.25 A (1.65 A peak)
Very compact size
Standby mains consumption: lower than 30 mW at 230 V_AC
Minimum active mode efficiency: 81.55%
Minimum active mode at 10% load efficiency: 71.55%
EMI: in accordance with EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA171V1

12 V - 15 W quasi resonant flyback converter based on the VIPER35HD

Quick view

Key Features

Wide input voltage range: 90 V_AC to 264 V_AC
Output voltage: 12 V
Output current: 1.25 A
Rated output power: 15 W
Quasi resonant operation
Input power standby @ 230 V_AC : < 30 mW
Active mode efficiency: > 82%
EMI: pre-compliance with EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA174V1

7 W dual output offline flyback converter for home appliances using VIPer0P

Quick view

Key Features

Zero-power input consumption ratified as per IEC62301 Clause 4.5 (P_{IN_ZPM} < 5 mW at 230 V_AC )
Negative output voltage easily set through the voltage divider
Five-star energy efficiency when operating with no load (P_{IN_no_load} < 10 mW at 230 V_AC )
Meets ErP Lot 6 Tier 2 requirements for household and office equipment
Meets European regulation 1275/2008 regarding eco-design requirements for standby and off-mode electric power consumption for household and office equipment
Compliant with the ErP Lot 6 Tier 2 requirements in off-mode
Compliant with the 10% load efficiency and 4-point average active-mode efficiency targets prescribed by the European CoC ver. 5 Tier 2
Meets IEC55022 Class B conducted EMI even with reduced EMI filter, thanks to the frequency jittering feature
VIPer0P 800 V avalanche rugged technology and its embedded protections ensure enhanced system reliability
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA184V1

5V/1.2A 12V/750mA double output flyback converter using VIPER37LD

Quick view

Key Features

Universal input mains range: 85 – 265 V_AC ; frequency: 50 – 60 Hz
Output voltage 1: 5 V / 1.2 A
Output voltage 2: 12 V / 0.75 A
Very compact size
Standby mains consumption: < 40 mW at 230 V_AC
Average efficiency: > 75%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

STEVAL-ISA195V1

5 V / 0.36 A buck converter using VIPerPlus ? VIPer11

Quick view

Key Features

Universal AC main input voltage range: 85 V_AC to 265 V_AC
Output range: 5 V / 0.36 A
Rated output power: 1.8 W
Input power in standby at 230 V_AC : less than 18 mW
Active mode efficiency: > 65%
EMI: according to EN55022-Class-B
RoHS compliant

Product Details Download databrief

IMAGE

FEATURED RESOURCES

Schematics BOM Gerber

00 Files selected for download

Technical Documentation

Application Notes

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	1.0	1.5 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

Part number	Description
STPS2150	150 V, 2 A Power Schottky Rectifier
STPS6M100DEE	100 V, 6 A PowerFLAT Power Schottky Rectifier

Part number	Description
VL53L0X	World smallest Time-of-Flight (ToF) ranging sensor
VL53L1X	Long distance ranging Time-of-Flight sensor based on ST FlightSense technology
VL6180X	Proximity sensor, gesture and ambient light sensing (ALS) module

Part number	Description
HTS221	Capacitive digital sensor for relative humidity and temperature
STLM20	Analog temperature sensor, ultra-low current 2.4 V, high precision
STTS751	2.25 V low-voltage local digital temperature sensor

Part number	Description
STGW20IH125DF	1250 V, 20 A IH series trench gate field-stop IGBT
STGW28IH125DF	1250 V, 25 A IH series trench gate field-stop IGBT

Part number	Description
ESDA5V3SC5	Quad Transil™ array for ESD protection
SMA4F12A	400 W, 12 V TVS in SMA Flat
SMA4F5.0A	400 W, 5 V TVS in SMA Flat

Part number	Description
ACST310-8FP	Overvoltage protected AC switch
T1635T-8I	Snubberless™ 16 A Triac

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