DC Power Supply With Charger

thingiverse

Dual DC power supply with 1 or 2 cell lithium ion charger. It is powered by a 19V computer power supply, the main output capable of 0-18V at about 12A, secondary output 1-40V at about 3-4A. Everything can be found on Amazon or Ebay. I got everything on Amazon and will add the list of parts and how it's listed on Amazon. Also keep in mind that the cost of the parts when ordering on Amazon is with multiple pieces so when something is $8 or $15, it's usually a pack of 3 or 5. With that in mind, I know this isn't the cheapest way to get a DC power supply; you can just buy one for less than what this build is but it's not about the money for me - I just like to design and build... just because. I will be adding some reverse polarity protection circuits on the outputs soon. I am just waiting on the parts and when I get a chance, I'll try to add a wiring diagram but it is a pretty simple setup. - 230W AC Adapter charger for HP EliteBook 8740W 8760W 8770W 641514-001 19.5v11.8a laptop power adapter = $40 - 10Pcs Black and Red 4mm Banana Jack Socket Female Adapter Panel Mount Binding Post for 4mm Banana Plug Connectors = $11 - WINGONEER DPS3012 30V 12A Constant Voltage Current Step-Down Power Supply Module Buck Voltage Converter Voltmeter = $35 - MCIGICM 0.28" LED Voltmeter Ammeter, Red and Blue Digital Multimeter Display Voltage Current Tester, DC 0-100V 10A Detector Voltage Current Meter Panel Amp Volt Gauge = $8 - Magic&shell 5PCS 10K Ohm 3 Pins WH148 Type Linear Mono Stereo Pot Potentiometer Short Handle Round Shaft with Black Knob Hat = $8 - bayite 3 Wire 0~30V Digital Voltmeter Gauge Tester Blue LED Display Panel Mount Car Motorcycle Battery Monitor Volt Voltage Meter with Reverse Polarity Protection Pack of 5 = $13 - DEVMO 2PCS XL6009 DC-DC Adjustable Step-UP Power Converter Module Replaces LM2577 = $11 - KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector = $7 - Anmbest 5PCS XL4015 High Efficiency DC-DC Step Down Adjustable Buck Switching Power Supply Module Voltage Regulator 4~38v to 1.25-36v 5A 75W = $13