The DC/DC converter is an optional link. It is not to be found in every portable
product. There are two reasons for its presence. First of all, the battery might deliver
a voltage which is not suitable for operation of the load. Secondly, each circuit part
of the load should be operated from the lowest possible supply voltage for efficiency
reasons, because a surplus in supply voltage is often dissipated in the form of heat.
In both cases, the DC/DC converter powers the load with the lowest possible supply
voltage, irrespective of the battery voltage. The DC/DC converter uses an inductor,
which translates the electrical energy from the battery into magnetic energy and
back into electrical energy again. In the load, the electrical energy from the DC/DC
converter is converted into sound, light, Electro-Magnetic (EM) radiation or
mechanical energy.
The DC/DC converter is an optional link. It is not to be found in every portableproduct. There are two reasons for its presence. First of all, the battery might delivera voltage which is not suitable for operation of the load. Secondly, each circuit partof the load should be operated from the lowest possible supply voltage for efficiencyreasons, because a surplus in supply voltage is often dissipated in the form of heat.In both cases, the DC/DC converter powers the load with the lowest possible supplyvoltage, irrespective of the battery voltage. The DC/DC converter uses an inductor,which translates the electrical energy from the battery into magnetic energy andback into electrical energy again. In the load, the electrical energy from the DC/DCconverter is converted into sound, light, Electro-Magnetic (EM) radiation ormechanical energy.
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