1. J

    Current control for a battery charge

    How can I control the current that is supplied to a battery? I need to balance current consumption to avoid some parts of the system run out of power. My system is described in the attached file. I have a 12V input which goes into a Boost regulator to get 48V. Those 48V are used to feed a...
  2. johnyradio

    Do LI Charger Chips Require Constant Current Input?

    LI charger chips are switching step-down converters with a constant-current mode. Say it's a single switch buck-type charger. It's input range is 5V to 10V, and is capable of charging cells at 2A. Will that chip require a 2A input regardless of Vin, whether 5V or 10V? Or, can the chip accept a...
  3. P

    How to implement my control system on my dsPIC33EV 5V CAN -LIN Starter kit (dsPIC33EV256GM106)

    Hello everyone, So I have been working on a wireless charger for EV applications. The prototype I designed uses a control system to manage the voltage at the exit of the charger. Without going too deep, we can just assume the charger is a source supplying a square signal of 15 Volts of 150kHz...
  4. G

    Li-ion cell charging module resistor selection?

    Greetings. A vendor selling TP4056-based 5 V charging modules for Li-ion cells specified the following resistance values and resulting current for selecting the current-programming resistor: R (kΩ) I (mA) 30 50 20 70 10 130 5 250 4...
  5. P

    Inductive Power charge simulation current control

    Hello everyone, I am writing to ask about how can I control de currents in my inductive charger more specifically the current in the resonant tank I designed. My goal is to design an inductive wireless charger that uses a resonant tank to maximize the efficiency of the process. I am going to...
  6. P

    Li-ion battery charging termination current

    Hi all, I have a question about Li-ion rechargable batteries. I have almost no experience with it. Documentation to battery is very poor, but there is an info about charging profile: Stage 1: Constant Current 0.82 Ampere (0.2C) until Voltage reach 4.2V Stage 2: Constant Voltage (4.2V) with...
  7. Theo_KVA

    Solar charging multiple 18650 Li-on cells with TP4056?

    Hi everyone, I plan to build a high capacity 3.7V/5V solar charging powerbank (something like 10-15ah). I’m going to use modules of TP4056 breakout board each coupled with two 18650 cells in parrallel. But I was wondering what would it need to charge two or three of these TP4056 modules with a...
  8. T

    Making a mobile phone fast charger plug

    Hi all, I am totally new to all this and i honestly have no idea what i need so im looking for some advice. what i want is to be able to make my own circuit board layout for a fast charger plug for your mobile. what i want to know is: what components do i need which components connect to...
  9. Arunmosespaul P

    Need charger solution - Board

    Hi There, I am need of a circuit that will work as expected. Please check the attached image for information.