DESCRIPTION
The SparkFun Variable Load Kit is a quick-to-assemble board designed to allow users to draw a specific amount of current from a voltage input. This kit can be used to test the stability of the power supply under various loads, battery lifetime, safety cutoffs and other design elements. The Variable Load Kit can test supplies of up to 30V at currents ranging from a few mA all the way up to 4A.
The Variable Load board is meant to work with one of two output modes: either using a console on a PC for feedback or using a 16×2 character LCD. In either case, the capacitive touch buttons on the front of the Variable Load PCB can be used to change the settings. There are four buttons: up arrow, down arrow, enter and back. The up and down arrow keys will adjust the current set point, the enter key turns the load on or off, and the back button resets the set point to zero. Additionally, there is an LED visible that will tell you whether the load is enabled or disabled at any given time.
Please Note:
- This kit will need to be assembled before use, so knowledge of soldering will be required. Also, the SparkFun Variable Load Kit does NOT include headers or an LCD to solder them to.
- For safety, please be sure that the total load power is limited to 15W because, even at that wattage, the heatsink will get hot to the touch.
FEATURES
- 1x Variable Load Board
- 1x N-Channel MOSFET 60V 30A
- 1x Multiwatt Package Large Heatsink
- 1x Screw Terminal (2-Pin)
- 1x Hex Nut (4-40)
- 1x Phillips Head Screw (4-40, 3/8″)
- 4x Phillips Head Screw (4-40″)
- 4x Plastic Standoff (4-40; 3/8″)
RESOURCES
- Schematic
- Eagle Files
- Hookup Guide
- PSoC-Based Digital Load Box
- Heatsinks and Thermal Dissipation
- GitHub
Quick Shipping and Professional Packaging
We provide a variety of shipping options due to our long-running partnerships with UPS, FedEx and DHL. Our warehouse staff is highly skilled and will pack your products according to our precise and accurate specifications. Your items are carefully inspected and securely secured prior to shipment. Everyday we deliver thousands of packages to clients across many countries. The fact that we are determined to become the largest online retailer in the world is evident. The warehouses are located in Europe just as they are in USA.
Orders with more than 1 item are assigned processing times in accordance with the item.
Before shipping the items, our staff will carry out an exhaustive inspection of the items you purchased. Most orders are delivered within 48 hours. The time to deliver varies from 3-7 days.
Returns
We don't manage the stock at our warehouse and factory. This means that the actual stock could change at any time. It's possible that your order will be unable to fill once you've placed your order.
Our policy lasts for thirty days. If you don't receive the product within 30 days, we are unable to offer either a return or exchange.
In order to be eligible for a refund your product must be unopened and in the same state as you received it in. The item must be in its original packaging.
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