Philips HD4907 - 1 Introduction; What Is Induction Cooking; How Induction Cooking Works; Figure 1: How Induction Cooking Works

Philips Induction Cooker HD4907 User Manual
1 Introduction
This section introduces you to the concept of induction cooking.
1.1 What is Induction cooking?
Induction cooking, is a technology that heats a cooking vessel by magnetic
induction – which in turn heats and cooks the food. This is because the
induction cooker is a powerful, high-frequency electromagnet. Induction
cooker needs electricity to operate.
For more information on Electromagnet, refer to Glossary on page 13.
When a cooking vessel of magnetic material – for example, stainless steel or
cast iron – is placed on the induction cooker, the combination produces a
magnetic field. The magnetic field generated transfers (induces) energy into
that cooking vessel. This transferred energy causes the cooking vessel to
become hot.
Induction cooker is more energy-efficient, and provides faster and consistent
heating.
1.2 How induction cooking works?
This section describes how induction cooking works.
• In an induction cooker, a coil of copper wire (represented by red) is placed
under the cooking plate of the cooker. The coil produces high-frequency
electromagnetic field (represented by orange) when alternating electric
current passes through it. For more information on Electromagnetic field,
refer to Glossary on page 13.
• This resulting magnetic field interacts with the ferrous (magnetic material)
cooking vessel, producing heat.
• Heat generated in the cooking vessel is transferred to whats being cooked.
• As soon as the cooking vessel is removed from the cooker, or the cooker is
turned off, heat generation stops.
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Figure 1: How induction cooking works