Buck converter#
Block appearance in REPEAT VISION#
The Buck converter block is a converter controlled by a pulse generator, which lowers the voltage, Fig. 1:
Fig. 1 Buck Converter#
This block contains two semiconductors, a diode and a controlled key, an inductor and a condenser to store energy (see Fig. 2 below). The inductor stores energy from the source when the key is activated. The inductor current continues to supply the load when the key is disconnected. A condenser is used to stabilize voltage.
Fig. 2 Two configurations of the Buck Converter circuit#
The controlled key role is performed by an IGBT/Diode pair key, where direct voltages of the forcibly switched device and diode are neglected.
1. Properties#
Property |
Default value |
Description |
Units of measurement |
|---|---|---|---|
Resistance |
10.0 |
- |
Ohm |
Inductance |
1.0e-4 |
- |
H |
Initial current |
0.0 |
- |
A |
Internal resistance |
0.01 |
- |
Ohm |
Forward voltage |
0.5 |
- |
V |
Diode close state resistance |
1.0e10 |
- |
Ohm |
On |
- |
- |
|
Diode snubber capacitance |
1.0e-6 |
Available, when |
F |
Diode snubber resistance |
1000000.0 |
Available, when |
Ohm |
Open state resistance |
0.001 |
- |
Ohm |
Close state resistance |
1.0e8 |
- |
Ohm |
On |
- |
- |
|
Switch snubber capacitance |
1.0e-6 |
Available, when |
F |
Switch snubber resistance |
1000000.0 |
Available, when |
Ohm |
Capacitance |
5.0e-5 |
- |
F |
Initial voltage |
10.0 |
- |
V |
2. Inputs and outputs#
Parameters |
Input/Output |
Description |
Units of measurement |
Port type |
|---|---|---|---|---|
Control |
Input |
- |
- |
Automation |
1+ |
Input |
- |
- |
Electronics |
1- |
Input |
- |
- |
Electronics |
2+ |
Output |
- |
- |
Electronics |
2- |
Output |
- |
- |
Electronics |
In order to see the connection capabilities of the block, you need to go to page Description of block ports