Blue LED attraction
Six through-hole blue LEDs provide the attraction light for the trap enclosure.
Electronic Pest Control
High-Voltage LED Mosquito Killer
An open-hardware mosquito trap that combines blue LED attraction with a compact transformer-driven high-voltage grid supply.
Transformer-driven high voltage
A D882 transistor drives the custom step-up transformer, followed by a high-voltage diode and capacitor network for the protected grid.
Power options
The design includes a Micro-USB 5V input and separate 7.4V battery nets. Final wiring and charging arrangements must follow the published schematic.
High-voltage components
The BOM specifies 2 kV and 3 kV capacitors plus RFC3K-3000V rectifier diodes for the multiplier section.
Manufacturing files
The archive contains OrCAD schematics, Allegro PCB sources, BOM spreadsheets, Gerber artwork, drill data and board-outline DXF files.
Verified PCB database
The final mosquito_killerv4 board report records zero DRC errors and zero database errors.
Board construction
The fabrication note specifies a 1.0 mm single-layer FR4 board with OSP or HASL surface finish.
Project status
The hardware design is complete. Electrical output voltage, attraction performance and enclosure safety still require documented validation before general use.
Safety Warning
Dangerous high voltage
This circuit can generate a hazardous electric potential after power is removed. It must only be assembled and tested by people experienced with high-voltage electronics. Use a fully insulated, finger-safe enclosure, discharge the high-voltage capacitors before handling, and keep the device away from children, pets, moisture and flammable materials.
PCB Layout
Final single-layer board design