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Hardware » History » Revision 12

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Luiz Fernando Lavado Villa, 2019-02-28 15:19


Hardware

The hardware of the single-phase project consists of a 10cm by 10cm printed circuit board that hosts 5 electronics blocks.
These blocks all fulfill functions which are necessary to the proper operation of any power electronics converter.
Figure 1 illustrates these blocks.

theory_power_converter_1.png
Figure 1 - General overview of a power electronics converter

Each block is explained in detail in the sections below.

Power Block

To better explain the Power Block, this page splits its presentation in theory and practice.

Theory

The theory of the power block is explained in the page below.

Practice

In practice the power block is calculated to correspond to a certain set of specifications.
The specifications are given in detail in the page below.

In the case of the single-phase projects, the specifications are described by the table below.

The Power Block is implemented in a special page of the KiCad project available in the repository of the single-phase project.

Variable Description Value
Vlow Maximum low-side voltage 60 V
Vhigi Maximum high-side voltage 120 V
freq Switching frequency 100 kHz
Pnom Nominal power rating 500 W

With these specifications, the single-phase converter uses the following components on it Power Block

Component Description Reference RS Ref.
ML1 Low-side MOSFET transistor FDPF39N20 -
MH1 High-side MOSFET transistor FDPF39N20 -
CPL1-4 Low-side Capacitors - -
CPH1-4 High-side Capacitors - -
L1 Power Inductor 1410478C -
DL1 Low-side Schottky Diodes MBR20200 -
DH1 High-side Schottky Diodes MBR20200 -

The MOSFET and the Schottky diodes were chosen for their voltage rating (200V) and their current rating (30A - to be confirmed).
The Capacitors were chosen for their voltage rating, 160V - to be confirmed.
The Inductor was chosen for its current rating of 10 A.

Measurement Block

Control Block

Driver Block

Feeder Block

Updated by Luiz Fernando Lavado Villa about 5 years ago · 12 revisions