Técnica: Constructing a Capacitor Discharge Tool
- Autor: Andrew Bookholt
- Tiempo estimado: 15 minutos
- Dificultad: Moderar
Capacitors are electronic components found in almost every device containing a circuit board. Large capacitors can store enough charge to cause injuries, so they must be discharged properly.
This guide will show you how to make a simple resistor-based capacitor discharge tool.
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Paso 1 — Constructing a Capacitor Discharge Tool ¶
To construct a capacitor discharge tool, first gather the necessary materials. These include:
Two lengths of wire. Minimum wire requirements is 12AWG, 600 volt rating for large electrolytic capacitors used in power supplies, electric motor start circuits and camera flash circuitry
A resistor rated to dissipate the amount of thermal energy created when discharging the capacitor. Minimum requirements for resistor is 2k OHM 5w for small capacitors, 20k OHM 5w for large electrolytic capacitors used in power supplies, electric motor start circuits and camera flash circuitry.
Paso 2 ¶
Begin the process by stripping one side end of each length of wire.
Paso 3 ¶
Next, trim both of the leads leaving the resistor to match the length of insulation stripped off the wires in the previous step.
Paso 4 ¶
Join the lead leaving the resistor to the stripped end of the wire by twisting the two together.
Solder the wire to the resistor.
Paso 5 ¶
Slide a section of shrink tubing up the wire, making sure to completely cover up the solder joint and any exposed wire.
Use a heat gun or lighter to shrink the tubing over the joint, making sure it is positioned to cover all exposed wire.
Paso 6 ¶
Repeat the above process for the other side of the resistor.
To complete the discharge tool, strip the ends of the wires.