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STD h-bridge
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License: TAPR Open Hardware License
Description
A schematic-only project to demonstrate how a bootstrap capacitor works. The overall circuit is a DC to DC Buck converter (see [Buck converter, from Wikipedia](https://en.wikipedia.org/wiki/Buck_converter)):
- The control signal is a 20kHz, 50% PWM wave.
- The power source is 12V DC.
- The MOSFET is a N-Channel, requiring a positive voltage between gate and source of at least 5V.
To simulate it, use the following configuration:
- Transient
- Maximum timestep: 0.1us
- Stop time: 100us
- Start time: 0
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | PULSE(5V 0V 20u 2u 2u 25u 50u) AC 1 0 | V1 | HDR1X2 | 1 |
| 2 | 1N4002RL | D1,D2 | DO-41 | 2 |
| 3 | 1u | C1 | RAD-0.1 | 1 |
| 4 | 2N2222 | Q1 | ? | 1 |
| 5 | IRLB3813PBF | Q2 | NONE | 1 |
| 6 | 150 | R1 | AXIAL-0.6 | 1 |
| 7 | 5k | R2 | AXIAL-0.6 | 1 |
| 8 | 12 AC 1 0 | V2 | HDR1X2 | 1 |
| 9 | 1m | L1 | AXIAL-0.4 | 1 |
| 10 | 10 | R3 | AXIAL-0.6 | 1 |
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