A negative power supply kit capable of delivering 1 amp from -15vdc to -25vdc.Designed by NightFire Electronics LLC in United States of America
This Adjustable Negative Voltage Power Supply Project Kit is designed around the LM337T 3-Terminal Adjustable Negative Voltage Regulator in the TO-220 package. It is capable of supplying in excess ...Read More…
This Adjustable Negative Voltage Power Supply Project Kit is designed around the LM337T 3-Terminal Adjustable Negative Voltage Regulator in the TO-220 package. It is capable of supplying in excess of 1.0 Amps over a range of -1.5volts to -25volts output.
This kit consists of the PCB, Schematics, and parts required to build a 1-amp (or more), highly regulated Negative Adjustable DC Power Supply. It requires an input AC or DC voltage source (3 V to 25V) from a transformer, such as a wall-mount type. A heat sink (not supplied) may be needed for the LM337T, depending on your application. You will need soldering tools and basic soldering skills.
The output voltage is varied with a potentiometer and is very steady and accurate even while the input voltage varies. The output can be varied from around -1.5VDC up to -25VDC depending on the input voltage and the choice of resistors. This circuit is perfect for those that want their own small but powerful power supply. It can be used on the bench or as part of your project. It is small enough to fit in robotic vehicles and such.
The maximum input voltage is 18VAC or 35VDC. Do not connect this directly to the 120VAC line.
This kit is also offered as a "Built & Tested" for those that do not want to build the kit themselves.
The PCB is 1.1" x 2.0", double-sided, .062", FR-4, with Silk Screening on the Top Side. This is an excellent chance to build your own Power Supply.
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United States Postal Service: Standard US Mail with Delivery Confirmation
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