Power Electronics

Power Electronics and Energy Management or PEEM blog of delabs Technologies has a Focus of Power Supplies and Instruments related to Energy Testing.

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Tuesday, January 01, 2019

Schott Magnetics - Inductors Transformers Coils

Schott Magnetics designs and manufactures custom and standard inductors, transformers, coils, toroid magnetics, chokes and custom designed magnetic components.

Schott Magnetics - Inductors Transformers Coils

Cost effective transformers and inductors for the power supply, avionics, military, medical, test & measurement, industrial, automotive and commercial applications.

History - "Schott began as a part-time home business in 1946 by its founder, Oscar A. Schott. Due to Oscar’s unique talents in electrical engineering, many companies approached Oscar to build prototype transformers and coils. In 1951, Schott became a full time corporation."

 SMU1330 Series Drum Core Inductors

SMU1330 Series Drum Core Inductors

High energy storage and low resistance, Ideal for DC-DC step-up or step-down conversion, Reliable surface mounting, flat top for pick and place.

Schott Sales and Engineering
210 St. Olaf Ave, N. Canby, MN 56220, USA.

High-Voltage High-Power IGBT

IGBT module from  Hitachi. The new IGBT module makes high energy efficiency and silent operation of inverters possible. It has High thermal fatigue durability. It is a High speed and low loss IGBT module.

High-Voltage High-Power IGBT

Low noise due to soft and fast recovery diode. The driving power is less as the MOS gate input capacitance is very low. The modules are very reliable and durable. The heatsink has a Isolation between terminals and base.

High-Voltage High-Power IGBT

From 1700V to 6500V,  High Power Density, Low Inductance, Scalable, Easy Paralleling, Standard and High Isolation Package.

The Hitachi Power Semiconductor Devices mark a new era of Power electronics by High-Power IGBT modules, High-Voltage ICs and Power diodes.

Induction Heating - Cooker Project

Single plate induction cooker demonstration board Uses ST7LITE09 and STGW40NC60WD (40 A, W series).

The design is entirely controlled by a simple ST7FLITE09Y0 8-bit microcontroller, which provides the PWM driving signals, communicates information to the user interface, and drives the fan and relay control to the plate feedback.

With Single Voltage Flash Memory, Data Eeprom, Adc, Timers, Spi Active - ST7LITE09Y0 8-Bit Mcu

Induction Heating - Cooker Project

A single plate induction cooker with the ST7FLITE09Y0 PDF - Excerpt From Application Note above AN2383 Application note -

Put simply, an induction cooking element (what on a gas stove would be called a "burner") is a special kind of transformer.


When a good-sized piece of magnetically conducting material such as, for example, a cast-iron frying pan, is placed in the magnetic field created by the cooking element, the field transfers ("induces") energy into the metal. That transferred energy causes the metal - the cooking vessel - to become hot.

By controlling the intensity of the magnetic field, we can control the amount of heat being generated in the cooking vessel and we can change that amount instantaneously.

Induction cooking functions based on the principle of the series L-C resonant circuit, where the inductance L is the cooking element itself. By changing the switching frequency of the high voltage half-bridge driver, the alternating current flowing through the cooking element changes its value. The intensity of the magnetic field and therefore the heating energy can be controlled this way.



The +325 V DC link voltage is applied through a filter to the upper-side IGBT only when the safety relay is closed and the system is on. Components inside the dotted rectangle are the core part of the power stage: the L-C resonant tank is obtained by the plate (represented in the schematic by a spiral) and the capacitors on the left side.

Induction heating is a non-contact heating process - Richie's Tesla Coil Web Page

The resonant capacitor has been divided in two identical capacitors, so that the amount of current flowing through each capacitor is reduced by half, while the voltage to the capacitors remains the same.