![]() ![]() Each 12 volt outlet is fused and the USB outlets are fused as 2 pair, so I have 4 fuses total. What I made has 2 12 volt sockets and a 4 slot USB outlet bank off of a CPU board. I built this circuit for my truck, it only has 1, 12 volt outlet. They are nice because of their screw terminals. Of course, you can also use an existing 12v-5v converter in your car, be it light duty, medium, or heavy duty or use these nice power adaptor that are meant to be integrated into other projects or this beefier waterproof, super high power alternative with a heatsink. Also, if you really want to protect your circuit badly, just put one on both sides. So, if you want 1.5 amps for your USB ports, then you select a 0.6amp fuse, if you want 2.5 amps at 5v, you select a 1 amp fuse, if you want 3.75 amps, you select a 1.5 amp fuse, etc.). Because we put the fuse on the 12v side, (which can vary from 11.5-12.5 volts, we have to use a value 2.5x smaller than what we want on our USB side. More information on the fuse: you can use a higher rated one if you use a different transistor that can take higher amperage. If you have a strange LED or want to make it brighter, please use this resistor calculator. Any LED will do, here are the values for the most common LEDs : 1.2v = 220ohm, 1.6v = 180ohm, 2v = 180 ohm, 2.2v = 150ohm. if you choose to add an LED, you need an LED and an appropriate resistor for 5V.Header boardsare a great and easy way to do this. For higher amps (many devices at once), use a TO220 ( and a bigger fuse) ![]() a L7805CV voltage regulator for lower amps.2 different colors of wire (so that you don't get confused later on).However, it will give enough juice to make a crucial emergency phone call when the time is needed. The downsides are that PowerUp only provides one USB-A charging port, which supplies a relatively weak 10-watt output. The included jumper cables provide up 600 cranking amps of power, which the manufacturer states is enough to bring engines up to 5 liters back to life. The LED lamp provides 300 lumens of light, which is great for peering into an engine bay or flagging down a tow truck. It’s also three devices in one, combining the charger with a handy flashlight and engine jump pack. The battery itself be charged using household power, or a car’s 12-volt outlet. It uses a built-in battery that can charge USB-A devices while away from a stable power source. All of the car chargers we write about have an average customer rating of 4 stars or more.Īll the other car charger we cover get power a vehicle’s electrical system, but what if the car battery dies? That’s where the Scosche PowerUp charger comes in. We’ve also taken care to select products with a wide range of features and price points, to suit as many needs and budgets as possible. We chose these products based on personal experience with car charging devices, as well as review input from Wirecutter, PCMag, and Android Central. USB-C can also be used to charge many cameras, and some laptops without the need for adapters. Another thing to look out for are quick-charging USB-C ports (Type C), which is the latest standard and generally more compact and streamline than devices with older USB-A ports. Look for chargers that are Qualcomm Quick Charge 3.0 certified, as these can provide a guaranteed 36 watts to compatible devices and deliver the fastest speed. However, keep in mind that the total wattage may split into half, or less, when plugging in multiple devices. Wattage is the most useful indicator of how fast a charger will work while comparing different models (the higher the number, the faster it'll charge). Those who carry a lot of gear on the road may find four or six more suitable. There are a couple questions to ask when browsing for chargers: “How many devices do I want to charge?” and “How fast?” One or two USB ports will likely suffice for most drivers. ![]()
0 Comments
Leave a Reply. |