Voltlog #82 - DIY Adjustable Analog DC Electronic Load

In this episode I am building an analog adjustable dc load with parts easily obtainable from ebay and banggood. The advantage of such a dc load is that you can understand how it works, modify or repair it if necessary far easier than you would with a digital one. I was able to push mine up to 60W dissipation, but it is recommended to stay under 50W to protect the mosfet.

Constant Current Analog DC Load PCB Module XHDZ-FZ-2D
Ebay: http://voltlog.com/y/usoe0
Banggood: http://voltlog.com/y/gm370

PZEM-031 100V 20A LCD Panel Meter
http://voltlog.com/y/0i6y7

Metal Box Enclosure 170mm x 130mm x 75mm Blue
http://voltlog.com/y/twerh

10 Turn 10K Potentiometer
http://voltlog.com/y/hq7cb

Brass Standoffs Kit
http://voltlog.com/y/7arl9
M3 Screw Kit
http://voltlog.com/y/8ztxg
KSD9700 NO Thermal Switch
http://voltlog.com/y/jl8xn
Cooling Fan 12V
http://voltlog.com/y/26qho
JST XH 2.54mm 3 Pin Connector
http://voltlog.com/y/tab3x
4mm Banana Plug High Current M5
http://voltlog.com/y/6n3yl
2.1mm DC Jack Panel Mount
http://voltlog.com/y/bvjat
Rocker Switch
http://voltlog.com/y/i8va7
Screw Terminal 3 Pin
http://voltlog.com/y/lkw2i
16AWG Silicone Flexible Wire
http://voltlog.com/y/at3fx

Reverse Engineered Shematic - Copyright Adrian Carstea
https://goo.gl/Olr6k2

Wiring Diagram
http://voltlog.com/y/zjbn6

Drill holes PDF
http://voltlog.com/y/yi5ge