2 layers224.2 × 153.7 mm
2 layers44 × 35 mm
Módulo de control PWM basado en TL494, pensado como cerebro de una fuente conmutada o convertidor de potencia.
- Size
- 44 × 35 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 17
- Pads
- 57
- Tracks, vias
- 148, 4
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 2 Apr 2023
- Updated
- 29 Apr 2026
Overview
TL494 is an open-source printed circuit board by picli3, from the picli3/pwm-controller-tl494 repository on GitHub. It is a 2-layer board of 44 × 35 mm with 17 parts on 17 nets, routed with 148 tracks and 4 vias.
It is built around the TL494. Its parts include 9 resistors, 4 transistors, 2 capacitors, 1 IC and 1 connector.
Main components
1README
README.mdpwm-controller-tl494
Módulo de control PWM basado en TL494, pensado como cerebro de una fuente conmutada o convertidor de potencia.
Qué incluye
- esquemáticos o archivos de diseño en KiCad
- PCB o documentación asociada
- base reutilizable para análisis, fabricación o mejora del proyecto
Propósito general
Este repositorio busca concentrar el diseño de hardware del proyecto en un formato editable y reutilizable, facilitando pruebas, documentación y futuras iteraciones del circuito.
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R8, R9 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4 |
| 2 | 2N3904 | Package_TO_SOT_THT:TO-92L_HandSolder | Q1, Q3 |
| 2 | 2N3906 | Package_TO_SOT_THT:TO-92L_HandSolder | Q2, Q4 |
| 1 | 1nF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C2 |
| 1 | 2.5uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1 |
| 1 | 50K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | 510 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | 51K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 9.1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Horizontal | J1 |
| 1 | TL494 | Package_DIP:DIP-16_W7.62mm_LongPads | IC1 |
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Questions
How big is the TL494 PCB?
It measures 44 × 35 mm and has 2 copper layers, 1.6 mm thick.
What parts does the TL494 use?
17 parts, built around the TL494. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the TL494 KiCad files?
From the picli3/pwm-controller-tl494 repository on GitHub, at the commit this page was made from: the board is TL494.kicad_pcb and its schematic OSC_TL494.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TL494 design in my own project?
Its repository states no licence, so its author keeps all rights: ask picli3 before reusing the design.