Microwave Oven

Microwave Oven

Such as low noise, low power consumption and miniaturization are important in designing microwave oven. Toshiba provides information on a wide range of semiconductor products suitable for power supply unit, magnetron driving circuit units, sensor signal input units, etc., along with circuit configuration examples.

Overall block diagram

Click the area you want to check the details in the overall block diagram. Show links to our proposed sub-block diagram.

 DC-DC DC-DC Control Button Control Button Magnetron Magnetron Steam Heater Steam Heater Grill Heater GrillHeater Cooling Fan Cooling Fan MCU, Photocoupler, Display Controller, LEDs MCU, Photocoupler, Display Controller, LEDs 12 V / 2 A 12 V / 2 A 100 to 240 VAC 100 to 240 VAC Door Switch Door Switch Thermostat Thermostat M M Antenna Motor AntennaMotor M M Boost Circuit BoostCircuit Relay Relay Relay Relay Relay Relay Relay Relay Temperature Sensor Temperature Sensor Key Input Key Input Display Display LED LED Weight Sensor Weight Sensor Main Control MCU Main Control MCU Display Control MCU DisplayControl MCU Photocoupler Photocoupler Magnetron drive circuit LED drive circuit Weight sensor circuit Temperature sensor circuit Relay drive circuit Flyback type AC-DC converter
Magnetron drive circuit

Example of magnetron drive circuit using bipolar transistor

Example of magnetron drive circuit using gate driver coupler

Flyback type AC-DC converter

Example of flyback type AC-DC converter

Relay drive circuit

Example of mechanical relay drive circuit using bipolar transistor

LED drive circuit

Example of LED drive circuit using bipolar transistor

Temperature sensor circuit

Example of the circuit using operational amplifier for amplifying temperature sensor signal

Weight sensor circuit

Example of the circuit using operational amplifier for amplifying weight sensor signal

Sub block diagram

Magnetron drive circuit
Magnetron drive circuit (Using bipolar transistor)

Example of magnetron drive circuit using bipolar transistor

Example of magnetron drive circuit using bipolar transistor
Various products are provided for radio frequency applications, power supply applications and other.
Part Number
TMBT3906
TMBT3904
2SC4116
Toshiba Package Name SOT-23 (SOT23) SOT-23 (SOT23) SOT-323 (USM)
VCEO (Max) [V] -50 50 50
IC (Max) [A] -0.2 0.2 0.15
Polarity PNP NPN NPN
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High speed switching characteristics and high hFE performance enable the system to have higher frequencies and lower losses.
Part Number
HN4B101J
HN4B102J
TPCP8901
TPCP8902
Toshiba Package Name SOT-25 (SMV) SOT-25 (SMV) PS-8 PS-8
VCEO (Q1) (Max) [V] -30 30 -50 -30
VCEO (Q2) (Max) [V] 30 -30 50 30
IC (Q1) (Max) [A] -1.0 2 -0.8 -2.0
IC (Q2) (Max) [A] 1.2 -1.8 1 2.0
Polarity (Q1) PNP NPN PNP PNP
Polarity (Q2) NPN PNP NPN NPN
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High speed switching and low saturation voltage characteristics contribute to high efficiency.
Part Number
GT40QR21
GT30J110SRA
GT30N135SRA
Toshiba Package Name TO-3P(N) TO-3P(N) TO-247
VCES (Max) [V] 1200 1100 1350
IC (Max) [A] 40 60 30
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System control at low power consumption by multi-channel timers and AD Converters (ADCs).
Series TX03 Series
Group M380 Group
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Magnetron drive circuit (Using gate driver coupler)

Example of magnetron drive circuit using gate driver coupler

Example of magnetron drive circuit using gate driver coupler
Rail to Rail output enables the system to operate stably and reduce conduction losses.
Part Number
TLP5771H
TLP5772H
TLP5774H
Toshiba Package Name SO6L SO6L SO6L
BVS (Min) [Vrms] @ t = 60 [s] 5000 5000 5000
VCC / VDD (Min) [V] 10 10 10
VCC / VDD (Max) [V] 30 30 30
ICC / IDD (Max) [mA] 3 3 3
Output Interface totem-pole(BUF) totem-pole(BUF) totem-pole(BUF)
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The built-in various protective functions make it easy to design the gate drive circuit.
Part Number
TLP5751H
TLP5752H
TLP5754H
TLP5231
Toshiba Package Name SO6L SO6L SO6L SO16L
BVS (Min) [Vrms] @ t = 60 [s] 5000 5000 5000 5000
VCC / VDD (Min) [V] 15 15 15 15.0
VCC / VDD (Max) [V] 30 30 30 23.5
ICC / IDD (Max) [mA] 3 3 3 10.2
Output Interface totem-pole(BUF) totem-pole(BUF) totem-pole(BUF) totem-pole(BUF)
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High speed switching and low saturation voltage characteristics contribute to high efficiency.
Part Number
GT40QR21
GT30J110SRA
GT30N135SRA
Toshiba Package Name TO-3P(N) TO-3P(N) TO-247
VCES (Max) [V] 1200 1100 1350
IC (Max) [A] 40 60 30
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System control at low power consumption by multi-channel timers and AD Converters (ADCs).
Series TX03 Series
Group M380 Group
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Flyback type AC-DC converter
Flyback type AC-DC converter

Example of flyback type AC-DC converter

Example of flyback type AC-DC converter
Various products are provided, mainly small package that is suitable for high density assembly.
Part Number
CMG06A
Toshiba Package Name M-FLAT
VRRM (Max) [V] 600
IF(AV) (Max) [A] 1
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High CTR (Current Transfer Ratio) is realized even in low input current range (IF = 0.5 mA).
Part Number
TLP383
TLP293
TLP385
Toshiba Package Name 4pin SO6L SO4 4pin SO6L
BVS (Min) [Vrms] @ t = 60 [s] 5000 3750 5000
VCEO (Max) [V] 80 80 80
Topr [°C] -55 to 125 -55 to 125 -55 to 110
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Relay drive circuit
Relay drive circuit

Example of mechanical relay drive circuit using bipolar transistor

Example of mechanical relay drive circuit using bipolar transistor
Various products are provided, mainly small package that is suitable for high density assembly.
Part Number
1SS352
Toshiba Package Name SOD-323 (USC)
VR (Max) [V] 80
CT (Typ.) [pF] 0.5
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Various products are provided for radio frequency applications, power supply applications and other.
Part Number
TMBT3906
TMBT3904
2SC4116
Toshiba Package Name SOT-23 (SOT23) SOT-23 (SOT23) SOT-323 (USM)
VCEO (Max) [V] -50 50 50
IC (Max) [A] -0.2 0.2 0.15
Polarity PNP NPN NPN
Search for lineup
System control at low power consumption by multi-channel timers and AD Converters (ADCs).
Series TX03 Series
Group M380 Group
Search for lineup
LED drive circuit
LED drive circuit

Example of LED drive circuit using bipolar transistor

Example of LED drive circuit using bipolar transistor
Various products are provided for radio frequency applications, power supply applications and other.
Part Number
TMBT3906
TMBT3904
2SC4116
Toshiba Package Name SOT-23 (SOT23) SOT-23 (SOT23) SOT-323 (USM)
VCEO (Max) [V] -50 50 50
IC (Max) [A] -0.2 0.2 0.15
Polarity PNP NPN NPN
Search for lineup
System control at low power consumption by multi-channel timers and AD Converters (ADCs).
Series TX03 Series
Group M380 Group
Search for lineup
Temperature sensor circuit
Temperature sensor circuit

Example of the circuit using operational amplifier for amplifying temperature sensor signal

Example of the circuit using operational amplifier for amplifying temperature sensor signal
Wide lineup from general purpose type to WCSP (Wafer Level Chip Size Package) type are provided. Contribute to realize a stable power supply.
Part Number
TCR15AG Series
TCR8BM Series
TCR5FM Series
TCR5RG Series
TCR3RM Series
Toshiba Package Name WCSP6F DFN5B DFN4D WCSP4F DFN4F
IOUT (Max) [mA] 1500 800 500 500 300
VOUT [V] 0.6 to 3.6 0.8 to 3.6 0.9 to 5.0 0.9 to 5.0 0.9 to 4.5
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Wide lineup from general purpose type to WCSP (Wafer Level Chip Size Package) type are provided. Contribute to realize a stable power supply.
Part Number
TCR3U Series
TCR3LM Series
TCR3D Series
TCR3EM Series
TCR1HF Series
Toshiba Package Name SOT-25 (SMV) DFN4D DFN4D DFN4D SOT-25 (SMV)
IOUT (Max) [mA] 300 300 300 300 150
VOUT [V] 0.8 to 5.0 0.8 to 5.0 1.0 to 4.5 0.8 to 5.0 1.8 to 5.0
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The lineup includes a low current consumption type that contributes to reducing power consumption and a low noise type that brings out performance of the sensor.
Part Number
TC75S102F
TC75S67TU
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
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Weight sensor circuit
Weight sensor circuit

Example of the circuit using operational amplifier for amplifying weight sensor signal

Example of the circuit using operational amplifier for amplifying weight sensor signal
Wide lineup from general purpose type to WCSP (Wafer Level Chip Size Package) type are provided. Contribute to realize a stable power supply.
Part Number
TCR15AG Series
TCR8BM Series
TCR5FM Series
TCR5RG Series
TCR3RM Series
Toshiba Package Name WCSP6F DFN5B DFN4D WCSP4F DFN4F
IOUT (Max) [mA] 1500 800 500 500 300
VOUT [V] 0.6 to 3.6 0.8 to 3.6 0.9 to 5.0 0.9 to 5.0 0.9 to 4.5
Search for lineup
Wide lineup from general purpose type to WCSP (Wafer Level Chip Size Package) type are provided. Contribute to realize a stable power supply.
Part Number
TCR3U Series
TCR3LM Series
TCR3D Series
TCR3EM Series
TCR1HF Series
Toshiba Package Name SOT-25 (SMV) DFN4D DFN4D DFN4D SOT-25 (SMV)
IOUT (Max) [mA] 300 300 300 300 150
VOUT [V] 0.8 to 5.0 0.8 to 5.0 1.0 to 4.5 0.8 to 5.0 1.8 to 5.0
Search for lineup
The lineup includes a low current consumption type that contributes to reducing power consumption and a low noise type that brings out performance of the sensor.
Part Number
TC75S102F
TC75S67TU
Toshiba Package Name SOT-25 (SMV) SOT-353F (UFV)
VCC (Max) [V] 5.5 5.5
VCC, VEE (Max) [V] +/-2.75 +/-2.75
Search for lineup

Solution Proposal

These documents explain the key points of recommended semiconductor products and their features. Please use them for product selection.

Solution Proposal
SolutionProposal_Microwave Oven / English (PDF:1.6MB)
SolutionProposal_Microwave Oven / Japanese (PDF:1.8MB)

Reference Design

PCB Photo (example)
Application Circuit of Low Power Consumption Op-Amp TC75S102F
Application circuits of low power consumption Op-Amp TC75S102F for use with various sensors. These application circuits can be used for devices requiring long battery life, IoT sensor, energy harvesting, etc.
Details

Documents

Please see the following pages for other documents.

Design & Development

Switched Mode Power Supply Library

you can select and download various basic topologies of a power supply unit based on your actual requirements in order to verify the behavior of MOSFETs with your simulation environment.

Switched Mode Power Supply Library
Motor Control and Driver Circuit Library

you can select and download various basic topologies of motor driver such as three-phase inverter circuit based on your actual requirements in order to verify the behavior of MOSFETs and another devices for your simulation environment.

Motor Control and Driver Circuit Library
Online Circuit Simulator

This service allows users to easily perform pre-verification of MOSFETs without the need to build a simulation environment.

Online Circuit Simulator
EDA/CAD Model Library

We provide simulation data, 3D models of packages, and land pattern models (2D models) used when developing product boards.

EDA/CAD Model Library
MCU Motor Studio

MCU Motor Studio features a PC Tool and motor control firmware dedicated to the TXZ+TM Family Advanced Class microcontrollers from Toshiba.

MCU Motor Studio

Contacts

Technical inquiry

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Frequently Asked Questions

FAQs
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