Introduction to usb circuit design usb is an acronym for universal serial bus and is the technology that enables the connections between computer and external devices over a cable using bi serial transmission. You can now charge your smartphone by connecting it to the usb socket of the converter module usbout using a usb cable and closing switch s1. Depending on battery chemistry, microchip offers a broad array of battery management solutions which feature small package sizes, highefficiency, low standby power, accuracy and versatility solutions to solve these portable power conversion challenges. Hence we need a replacement for the charging station and power supply. Usb mobile charger circuit mobile phone travel charger. Power strip surge protector with 6 usb charging ports and 6 outlets, 6ft heavy duty extension cord, 1625w. Here is the schematic of a simple diy solar cell phone or usb charger circuit. Sep 02, 2015 usb mobile charger circuit description. An example circuit of a single usb switch is seen in the schematic below.
This ic has many built in featuers like thermal overload protection, short circuit protection, safe operating. For the charging of your mobile phone, this circuit provides you a regulated voltage of 4. I know ill need usb inputs and the ac power source to name a few. Pic18f4550 is the main devices that communicate with pc and control stepping motor. From a 9v to 40v dc input, this design generates a 5v2. What are the names of the components i need to put in the schematics. I am wondering what i need to do to put rechargeable in the unit, and charge them in the unit. Below is a circuit where the voltage is removed the usb on the computer will be strengthened by several components so that the voltage used to charge batteries more powerful and. Charging batteries using usb power maxim integrated. The usb kill collects power from the usb power lines 5v, 1 3a until it reaches 240v, upon which it discharges the stored voltage into the. Here is the complete circuit diagram for cell phone charger circuit. Oct 12, 2016 usb cable extension different wire color in this video i am going to tell you about how to extend usb cable.
Reference designs offer the theory, component selection, and simulation of useful circuits. Whit this circuit, you can charger your cell phone from usb port in your pc or notebook. The charger works like a 500 ma iphone charger and will work with most modern phones. Ics main function is as decisive end and a battery charging. Usb mobile charger circuit circuit diagram, usb, electronic. Hh004f led driver circuit updated february 14, 2017 by arnab hh004f is a low power integrated boost converter ic in a to92 package, look exactly like a small transistor. The charge process begins with a trickle charge current. I needed this usb light since long time ago but, finally.
Usb cellphone charger electronic schematic diagram. This solar usb battery charger circuit can be used to charge any device, which can be charge from computer usb port. Low cost universal battery charger schematic eeweb community. It is a device that is placed between the solar panel and the battery bank to control the amount of electric energy produced by so. Charging the battery forces the ions to move back across the electrolyte and embed themselves in the negative electrode ready for the next discharge cycle figure 1. Single lithium cell charger schematic circuit diagram. Freepcb free electrical schematic diagram software. Usb cable extension different wire color in this video i am going to tell you about how to extend usb cable. The usb kill collects power from the usb power lines 5v, 1 3a until it reaches 240v, upon which it discharges the stored voltage into the usb data lines.
The iphone and kindle both come with tiny power supplies that take in 120v ac and output around 5v at 0. First connect the battery across the indicated points, and then plug in the usb connector with your computers usb socket. Battery management controllers charging, liion microchip. Circuit modifications that help to meet alternate design goals are also discussed. Follow the link given for details of this amazing software.
Leaving the radios on during charging confuses the charger and leads to charging discharging cylces, which wears out the battery and perhaps also overloads the charging circuit. Usb battery charger circuit electronics project design. This circuit works fine with most simple usb devices, however many modern phones or tablets require a much. Usb charger circuit diagram how mobile charger works free. How to make a fast charger for your phone custom maker pro. And for charging mobile quickly there is a need of 4. Learn about how fast chargers work and how to design a fast charger for your. Usb charger circuit diagram how mobile charger works. Circuitlab is an inbrowser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and. Usb mobile charger circuit circuit diagram, usb hub, usb. This address is used to detect the particular usb device.
Circuit diagram free electrical schematic diagram software. Nov 15, 2010 hi guise, building a usb charging station. Power bank circuit for smartphones full circuit explanation. Takes dc power from as low as 2v and bumps it up to the 5v usb needs at around 600ma 0. Aug 29, 2016 an example circuit of a single usb switch is seen in the schematic below. With this portable usb charger, you can recharge your phone onthego. But low current charging is better to increase the efficiency of the. Usb powered mobile phone battery charger eeweb community. Usb led lamp circuit description here is a simple usb powered lamp that can be used to light your desktop during power failures. This simple usb cellphone charger circuit can give regulated 4. Usb charger circuit diagram how mobile charger works free circuit lab. Tp4056 is a fully linear constant currentconstant voltage charger for a single cell liionlipo lithium polymer batteries. Nov 06, 2016 charging via mini usb connector which is very common. This circuit charges the battery whenever the device is docked to usb or plugged into the ac adapter.
The circuit consists of a pair of mosfet switching transistors and a couple of resistors. Data transfer between usb devices with a linebus speed up to 480 mbps. Public circuits, schematics, and circuit simulations on circuitlab tagged charger. Mobile battery charger circuit and working principle. Electronic engineering electrical engineering usb hub diy electronics electronics projects arduino mega e reader gadgets circuit diagram. The battery of the baofeng has 2 liion cells, with 1800 mah, and 7. The software controls the input and output data between the pc and device. But for highcapacity batteries, the 500ma output current of usb hosts and powered hubs greatly extends the charging time. Its low external component count and small outline package make it perfect for portable applications. Read this post to know about its circuit diagram and working. I successfully built this fast charger circuit and enclosed it in the. With simple charging at 100ma from usb and 350ma from an ac adapter, no enumeration is needed for the charger because the usb charge current does not exceed one unit load 100ma. Once detected, the pc sends data to the usb system software to recognize it which then identify the device and assign an address. Additionally tp4056 is compatible with micro usb as well as adapter.
Because the voltage which was issued on usb is 5 volts, while the averagevoltage phone battery 3. Usb cellphone charger circuit circuit wiring diagrams. Bestpractice layout design guidelines for highspeed usb 2. The circuit is very simple to build using only three components. If you are planning to install an offgrid solar system with a battery bank, youll need a solar charge controller. Mobile charger circuit diagram and working principle how smps works free circuit lab duration. Once the circuit is assembled and set up, the below shown design can be used for charging any spare liion battery through the usb port. Mobile phones generally charge with 5v regulated dc supply, so basically we are going to build a circuit. Usb battery charger circuit in recent years, the use of usb or universal serial bus as a reliable communications interface in many electronic devices have increased due to its increased speed, size and flexibility. All these batteries are fairly simple to find in most supermarkets. To illustrate the capabilities of this new standard and show what engineers will need to understand to build systems utilizing the typec standard, this twopart miniseries will explore the design of a simple typec charging dock with displayport connectivity. Youre on your way to meet friends for a picnic in the park. Now you can charge your mobile phone from the usb outlet of pc.
Dec 22, 2019 the charger circuit requires a 5 v input, which can readily be obtained from a usb port or from any 5 v power supply. A mobile battery charger circuit is a device that can automatically recharge a mobile phones battery when the power in it gets low. Free electrical schematic diagram software drawing circuit. How do i design a 2a or more power supply for my consumer usb. Leaving the radios on during charging confuses the charger and leads to chargingdischarging cylces, which wears out the battery and perhaps also overloads the charging circuit. They seem to be too small and light to have a transformer, and generate very lit. Thanks for watching subscribe to this channel for interesting electronics videos. Apr 16, 2020 hh004f led driver circuit updated february 14, 2017 by arnab hh004f is a low power integrated boost converter ic in a to92 package, look exactly like a small transistor. The following is a schematic and fritzing style wiring diagram that. Normaly when we extend a usb cable it has different wire colors that was difficult. Here is the circuit diagram of a low cost universal charger for nicd nimh batteries. Charging via miniusb connector which is very common.
Usb outlet can give 5 volts dc and 100 ma current which is sufficient for the slow charging of mobile phones. A usb charger circuit ouputs a regulated 5v that can be used to power. This reference design is a complete automotive usb charger solution from the car battery. This is the schematic diagram of cellphone charger circuit which connecter to the usb as main power. My question is doesnt the circuit need a capacitor. Sep 11, 2016 this circuit is used in to usb adapter to charge battery. This is a simple led circuit that takes power from the usb port. Diy solar cell phone or usb charger circuit diagram. These battery are combinations of three lithium cells whose voltage rating is 1. A designers guide to lithium ion liion battery charging. Usb charger circuit electronics forum circuits, projects. Overview a handy dc to usb assembled circuit that we use to make our solar usb chargers. The switch consists of 8 such circuits to ensure parallel control of individual usb connections. This is a project of a mini usb car charger circuit.
It has ability to transform a mains adapter in to a charger. Usb charger battery lion circuit circuit wiring diagrams. Simple usb charging circuit electronics projects circuits. If the output is ok and polarity is correct, connect it with the mobile phone. These battery packs have 3 nimh or lithium cells having 1. This circuit works fine with most simple usb devices, however many modern phones or. Usb power supply using tps61088 to support quick charge 2. Portable usb charger circuit build electronic circuits. The majority of the cellphones battery is appraised 3. The charger circuit requires a 5 v input, which can readily be obtained from a usb port or from any 5 v power supply. Usb mobile charger circuit now the charging of your mobiles has been made easy with the help of usb outlets present in the laptop and pc. This usb mobile charger circuit helps in charging the mobile phones while you are in travel. This circuit is used in to usb adapter to charge battery.
Low cost solution for charging of both nicd and nimh batteries. Usb powered battery charger circuit electronic circuit. The tool has support to export the digital circuit in images. Without any usb to phone battery charger circuit we can charging phone battery using port on usb computer, but it will quickly damage the phone battery, and the battery will bulge. Therefore, the above series can only be used to fill a lion battery only. Usb to phone battery charger circuit electronic circuit. This portable usb charger circuit is easy to build. It uses standard aa batteries that you can buy in any supermarket, or you can modify it to use other battery types, solar power or even power adapters not really meant for your phone. If you dont have software to draw the schematic, use a preword processor from the 60s. How do i design a 2a or more power supply for my consumer usb devices. Circuit of the smps section 5 volt output is given secondaries in the control section a simple onetransistor s9015 circuit with a 3. Hey guys, i have this schematic for a aa battery usb charger i built. When the cell terminal voltage is sufficiently high the charger switches to a higher constant charge current. Do you have its battery specifications, such as charging voltage range and the recommended charging rate.
Max charging current 500malimited by usb supply, depending on battery. Complete subsystem reference with schematics, bom, design files and test data implemented on a fully assembled board developed for testing and validation. Since you dont know where exactly your friends are, you pick up your phone to call them. A redcoloured led of the converter module will turn on, showing the charging status of the smartphone. How to create a programmatically switchable usb hub. If the software fails to assign the address, pc will not detect the device. In a liion battery, lithium ions move from one intercalation compound to another while electrons flow around the circuit to power the load. The usb charger circuit works from 6 aa batteries, 6 aaa batteries, or a 9v battery. Circuit diagram is an opensource and free software used to design electronic circuit diagrams. Heart of the circuit is a lm78m05 ic which is a 5v positive voltage regulator ic. Pictures on usb cell phone charger circuit schematic. Jan 27, 2017 build this portable usb charger circuit, and youll always have access to a charger. Simple circuit by using opamp, resistor, and not by any complex dedicated ic or microcontroller. A good battery charger maximizes battery capacity, extends battery life and monitors the charging process.
213 1435 1147 408 780 862 1628 165 941 360 1317 647 703 951 851 483 520 594 1320 863 600 1383 749 231 704 408 780 143 1022 20 967 1171