Project Description

Main Project Image
The project owner hasn't added main project image yet.
Project description
It has adjustable voltage limit but not adjustable current limit. Some design notes: Vin = 10-13.2V Iin = 2.6A max Vout (fixed) = 5.0V when R3 = 2.1k, R4 = 5k When R4 wiper goes to GND side of R4, output goes to 0V. When R4 wiper goes to high side of R4, output goes to VREF (~ 7.15V). Vout (max, short circuit) = 2.6A With R1||R2 = ~0.25 ohm, short circuit current limit is 0.65V/0.25ohm = 2.6A. At Isc, R1 and R2 share ~1.7W, so 2W components provide 50% derating At Isc, Q1 drops all of the input voltage except the 0.65V across the sense resistors, so worst case 13.2-0.65 = 32.6W, which is 60% of MJB44H11G's rated power. Variable current limit control can be added by separately controlling ISENSE based on a variable gain on the output current sense voltage. Need multiple MJB44H11G's in parallel to achieve higher output current. Need current amplifier on U1 VOUT output to accommodate this.
The project owner hasn't added any images yet.

Design Files

Embed Code

Export Design Data

Open JSON Format
All model data in Upverter's Open JSON export format (more info)
Gerber Format (RS-274X extended)
CAD to CAM transfer instructions (more info)
NC Drill (Excellon)
NC drill and route machine instructions (more info)
X-Y, rotation and side data for Pick and Place assembly (CSV)
PADS Layout Netlist
Export your schematic into a third-party layout tool
Dimension Drawing
Export the board outline, holes, and rulers
High-Res Schematic PNG
High resolution image form
3D Model (Step)
3D model of the board and components