Overview

Description

The design goal for induction cooking applications is to deliver the highest efficiency power conversion together with differentiating features such as rapid and focused heating, operational simplicity and high reliability.

In induction cooking applications, it is important that the IGBT controller, at the heart of the system, provides intelligent induction element control and gives the designer the tools and technical advantages to build a system that is efficient, reliable and integrates all required functions to simplify the design cycle and produce a volume-manufacturable design that is fast to market at a competitive cost.

This 2100W, single-plate induction cooktop design, using the smart IGBT driver and controller single-chip ASSP offers high-efficiency and high-reliability performance. The design gives the flexibility to adjust the power in ±10W steps, which allows the users to cook at the simmering condition. A capacitive touch sensing unit (CTSU) enables robust capacitive touch, which senses properly in wet conditions. Over-temperature detection using three negative temperature coefficient resistors (NTCs) are provided in the design.

System Benefits​:

  • Integrated ASSP design offers a low-cost, low component count system.
  • AC input, IGBT voltage spike detection, and current sense using the help with fast protection response. It is a digital controller with analog driver blocks using a state machine that offers a much faster response.
  • Controlled speed and soft start of the blower fan using the load switch.
  • Patented low-power technology, gives adjustable to ±10W allowing users to cook at the simmer condition.

Comparison

Applications

Applications

  • Home appliances
  • Kitchen appliances
  • Inductive heater (room, water)

Winning Combinations Interactive Diagram

Select a block to discover products for your design

4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 AS048 AS048 AS048 Bridge Rectifier Bridge Rectifier Bridge Rectifier L-C Filter L-C Filter L-C Filter AC/DC Buck Regulator AC/DC Buck Regulator AC/DC Buck Regulator LDO (150mA) LDO (150mA) LDO (150mA) Sheet.26 Load Switch Load Switch Load Switch IGBT (1200V/25A) IGBT (1200V/25A) IGBT (1200V/25A) Touch Key Sheet.35 Sheet.36 Sheet.37 Sheet.38 Sheet.39 Sheet.40 Sheet.41 Sheet.42 Sheet.43 Speaker speaker_8_ Sheet.46 Sheet.47 Sheet.48 Sheet.49 Diode - LED Sheet.51 Sheet.52 Sheet.53 Sheet.54 Sheet.55 Darlington.651 Sheet.57 Darlington.254 Resistor - Fixed Resistor - Fixed.78 Ground (earth) Sheet.80 Sheet.81 Sheet.82 Sheet.83 Ground (earth).89 Sheet.90 Sheet.91 Sheet.92 Sheet.93 Transformer Inductor Coreless (Air conductor) Sheet.95 Sheet.96 Sheet.97 Sheet.98 Sheet.99 Sheet.100 Sheet.101 Sheet.102 Sheet.103 N-Channel MOSFET Sheet.201 Sheet.202 Sheet.203 Sheet.204 Sheet.205 Sheet.206 Sheet.207 Sheet.208 Sheet.210 Sheet.211 Sheet.212 Sheet.213 Sheet.214 Connect.50 Sheet.216 Sheet.217 Sheet.218 Motor Sheet.220 Sheet.221 M M Tri component Component block.745 Component block.631 NTC x3 NTC x3 NTC x3 Sheet.226 Sheet.227 Sheet.228 Sheet.229 Sheet.230 Resistor - Fixed.232 Ground (earth).233 Sheet.234 Sheet.235 Sheet.236 Sheet.237 Resistor - Fixed.238 Resistor - Fixed.239 Sheet.240 Sheet.241 Sheet.242 Sheet.243 Sheet.244 Sheet.245 Sheet.246 Sheet.247 Sheet.248 Sheet.249 Sheet.250 Sheet.251 Sheet.252 Sheet.253 Sheet.254 Sheet.255 Sheet.256 Sheet.257 Sheet.258 Sheet.259 Sheet.260 Sheet.261 Sheet.262 Sheet.264 Sheet.265 Sheet.266 Sheet.269 Sheet.270 Sheet.271 Sheet.272 Sheet.273 Sheet.274 Sheet.275 Sheet.277 Sheet.279 Sheet.280 Sheet.281 Sheet.310 Sheet.283 Sheet.285 Sheet.286 Sheet.287 Sheet.288 Sheet.289 Sheet.290 Sheet.291 Sheet.292 Sheet.293 Sheet.294 Sheet.295 Sheet.296 Sheet.297 Sheet.298 Sheet.299 Sheet.300 Sheet.301 Sheet.302 Sheet.303 Sheet.304 Sheet.305 Sheet.306 Sheet.307 Sheet.308 Sheet.309 Connector 1.175 AC Input AC Input AC Input 90VAC~265VAC 90VAC~265VAC 90VAC~265VAC Connector 1.175.315 FAN 24V 0.13A FAN 24V/0.13A FAN24V/0.13A 18V 10mA 18V/10mA 18V/10mA Connector 1.175.319 18V 150mA 18V 150mA 18V 150mA 5V 30mA 5V/30mA 5V/30mA Buzzer Buzzer Buzzer 5V 10mA 5V/10mA 5V/10mA Sheet.324 Touch Key Touch Key Touch Key Connector 1.175.329 4 4 4 4 Sheet.332 7-Seg Display 7-Seg Display 7-Seg Display 2 2 2 2 Sheet.336 7 7 7 7 Sheet.339 LED x12 LED x12 LED x12 2 Communication Lines B.795 2 2 2 1 1 1 1 Sheet.346 Connector 1.175.347 Connector 1.175.348 2100Wmax Induction Heater Coil 2100Wmax Induction Heater Coil 2100Wmax Induction Heater Coil Sheet.350 Sheet.351 Connector 1.175.352 Connector 1.353 Connector 1.354 Connector 1.355 Connector 1.356 Connector 1.357 Connector 1.358 Connector 1.359 Connector 1.360 Connector 1.361 Connector 1.362 Connector 1.363 Sheet.404 Sheet.382 Sheet.383 Sheet.384 Sheet.385 Sheet.386 Sheet.387 Connector.210 Connector.211 Sheet.390 Sheet.391 Sheet.392 Sheet.393 Sheet.394 Sheet.395 Sheet.396 Connector 1.437 Connector 1.438 Sense Resistor Sense Resistor Sense Resistor 18V 0.5A 18V/0.5A 18V/0.5A Sheet.441 IGBT Driver and Controller IGBT Driver & Controller IGBT Driver & Controller BZ/RLY BZ/RLY BZ/RLY VCC VCC VCC Fan FAN FAN OTP OTP OTP I2C I2C I2C DRV DRV DRV VCE/S VCE/S VCE/S VDC/S VDC/S VDC/S CS CS CS CS Sheet.444 MCU MCU MCU VDD VDD VDD CTSU CTSU CTSU GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO I2C I2C I2C
Exiting Interactive Block Diagram