GD is the successor or replacement for the Wizard2 board.
Customize your GD Converter Board :
A fully regulated buck/boost converter. This converter will step up or step down. Ideal candidate for rechargeable Lithium-ion batteries (4.2V) and driving a Luxeon 1W or Luxeon 3W.
* Minimum Vin: 1.8V * Maximum Vin: 5.4V
* Maximum Vout: 5.4V * Output Regulation: Full Constant current regulation. * Open Load Protection: No * Output adjustable: Set by two SMT (0603) resistors. * Output Current formula: 0.05 / Rsense = Iout * Efficiency: 85%~93% * Maximum Output: >1A * Tallest Component: 3mm * Compatibility: ECan, Aleph Light Engine, Sandwich * Diameter: 0.55 inch * Technology: SMT Components top side only, Battery anode pad backside
Has Sandwich compatible holes.
Wiring Diagrams images - see Nexgen.
Technical Support Web page.
Resistor calculation web page page.
Resistor Table
Configuration
|
R1
|
R2
|
GD 400 |
0.12 |
None |
GD 650 |
0.15 |
0.15 |
GD 750 |
0.12 |
0.15 |
GD 917 |
0.10 |
0.12 |
GD 1000 |
0.10 |
0.10 |
|
Add'l R1 0.05 = 1.000A |