Wireless Mobile Battery Charger Circuit Project Report

Wireless mobile battery charger circuit is examined as the fast-emerging domain. Based on this domain, we offer few prominent projects along with goals, elements, and procedures. These projects include characteristic sets and intricateness, thereby facilitating you to select that suits your expertise range and passions:

1. Basic Wireless Charger Using Inductive Coupling

Goal: As a means to transmit power from a transmitter coil to a receiver coil, formulate a basic wireless charger through the utilization of inductive coupling.

Elements:

• High-frequency oscillator circuit
• Mobile device battery
• Rectifier and voltage regulator
• Transmitter Coil
• Receiver Coil

Procedures:

1. Design the Transmitter Circuit:

• In order to create a high-frequency AC signal, aim to develop an oscillator circuit.
• The transmitter coil has to be linked to the oscillator circuit.

2. Design the Receiver Circuit:

• Typically, to transform AC to DC, it is appreciable to link the receiver coil to a rectifier circuit.
• As a means to assure that the output voltage is appropriate for charging the mobile device battery, focus on appending a voltage regulator.

3. Test the System:

• The transmitter and receiver coils have to be coordinated. Focus on assessing the output voltage and current.
• For efficient power transmission, aim to adapt the coil spacing and arrangement.

2. Wireless Charger with Charging Indicator

Goal: To exhibit the condition of charging, improve the simple wireless charger through appending an LED indicator.

Elements:

• It includes current sensor or voltage detection circuit
• Elements from the simple wireless charger project
• LED

Procedures:

1. Modify the Receiver Circuit:

• In order to track the charging condition, focus on combining a voltage detection circuit or current sensor.
• Specifically, to denote when the mobile device is charging, it is significant to link the LED to the detection circuit.

2. Implement and Test:

• When the mobile device is appropriately located and charging, aim to assure that the LED lights are activated.
• The charging reliability and performance has to be validated.

3. Wireless Charger with Overcharge Protection

Goal: A wireless charger along with overcharge security has to be developed in order to avoid impairment of battery.

Elements:

• This project encompasses overcharge security IC or circuit
• Elements from the simple wireless charger project
• For progressive control, make use of microcontrollers as an optional choice.

Procedures:

1. Integrate Overcharge Protection:

• Typically, to track the battery voltage, aim to append an overcharge security circuit to the receiver side.
• When the voltage goes beyond a secure threshold, the protection circuit must remove the battery from the charger.

2. Optional: Microcontroller Control:

• Microcontroller has to be employed to track the condition of the battery and regulate the charging procedure.
• It is approachable to deploy extra characteristics such as temperature tracking or charge timers.

3. Test the System:

• Through evaluating along with various battery charge levels, validate that the overcharge security performs in an efficient manner.
• When the battery is completely charged, the system should stop the charging procedure. The way of assuring this is examined as significant.

4. Wireless Charger with Efficiency Optimization

Goal: Through the utilization of resonant inductive coupling, construct a wireless charger with enhanced performance.

Elements:

• It involves capacitors for tuning resonant frequency
• Elements from the simple wireless charger project
• For dynamic tuning, microcontroller is considered as optional

Procedures:

1. Design Resonant Coils:

• To function at a resonant frequency, assess and model the transmitter and receiver coils.
• As a means to construct LC circuits which are capable of reflecting at the similar frequency, it is advisable to append capacitors to both coils.

2. Optimize Efficiency:

• Typically, for high effectiveness, examine and adapt the coil arrangement and spacing.
• At the time of functioning, apply dynamic tuning to sustain resonance when employing a microcontroller.

3. Measure Performance:

• The effectiveness of the resonant coupling charger has to be contrasted to a simple inductive charger.
• Under different situations, log and investigate the effectiveness of power transmission.

5. Portable Wireless Charger with Power Bank Integration

Goal: For on-the-go charging, develop a movable wireless charger combined with a power bank.

Elements:

• This project includes power bank circuit and battery
• Elements from the simple wireless charger project
• For wired charging, employ USB ports as optional choice

Procedures:

1. Design the Power Bank Circuit:

• A rechargeable battery has to be combined with a power management IC and charging circuit.
• Specifically, for alternative wired charging abilities, encompass USB ports.

2. Integrate Wireless Charging:

• It is advisable to link the wireless charging receiver circuit to the battery of the power bank.
• When required, assure that wireless as well as wired charging could be carried out at the same time.

3. Test Portability:

• For battery lifespan, portability, and charging effectiveness, assess the entire model.
• By means of various devices and under different situations, focus on evaluating the charger.

6. Wireless Charger with Multiple Device Support

Goal: A wireless charger has to be formulated in such a manner that is capable of charging numerous devices at the same time.

Elements:

• It encompasses elements from the simple wireless charger project
• Numerous transmitter coils
• Power management circuit to manage numerous outputs

Procedures:

1. Design Multi-Coil Transmitter:

• To include a wider region, it is appreciable to configure numerous transmitter coils in a trend.
• As a means to stabilize the load, link every coil to the power management circuit.

2. Receiver Circuit for Each Device:

• For every device, model receiver circuits along with modification and voltage rules.

3. Test Simultaneous Charging:

• To assure efficient charging, assess the model by means of numerous devices.
• For constant charging, enhance the coil location and power dissemination.

How to simulate wireless mobile battery charger using MATLAB SIMULINK?

The process of simulating wireless mobile battery charger is determined as both complicating and fascinating. We suggest a stepwise instruction that assist you to simulate a wireless mobile battery charger through the utilization of Simulink:

Step-by-Step Guide

1. Set Up MATLAB and Simulink

It is advisable to assure that you have Simulink and MATLAB installed. Otherwise, from the MathWorks website, download and install them.

2. Create a New Simulink Model
3. Aim to open MATLAB.
4. To open the Simulink Start Page, type Simulink in the MATLAB command window.
5. As a means to develop a novel framework, click on “Blank Model”.
6. Model the Transmitter Circuit
7. Create the Oscillator Circuit:

• At this stage, go to the Simulink Library Browser.
• The following blocks has to be included to your system: Scope (from the Simscape > Foundation Library > Electrical > Electrical Sensors library), Voltage Source, Sine Wave (from the Sources library), and Resistor and Inductor (from the Simscape > Foundation Library > Electrical > Electrical Elements library).
• To create an LC oscillator circuit in such a way that produces a high-frequency AC signal, it is approachable to link these elements.

2. Design the Transmitter Coil:

• To depict the transmitter coil, focus on employing an Inductor block.
• The transmitter coil has to be linked to the output of the oscillator circuit.

4. Model the Receiver Circuit
5. Create the Receiver Coil:

• In order to indicate the receiver coil, utilize another Inductor block.
• Generally, to simulate inductive coupling, aim to locate the receiver coil near to the transmitter coil in your system.

2. Rectifier Circuit:

• It is important to include a Capacitor block (from the Simscape > Foundation Library > Electrical > Electrical Elements library) and Diode block (from the Simscape > Foundation Library > Electrical > Electrical Elements library).
• These elements have to be linked to create a rectifier circuit that contains the capability to transform the AC signal from the receiver coil to DC.

3. Voltage Regulator:

• To control the output voltage, it is significant to append a Controlled Voltage Source block (from the Simscape > Foundation Library > Electrical > Electrical Sources library).
• It is approachable to assure that the controlled voltage is appropriate for charging a mobile device battery.

5. Model the Battery
6. Add Battery Block:

• As a means to depict the mobile device battery, employ the Battery block (from the Simscape > Foundation Library > Electrical > Specialized Power Systems > Sources library).
• Focus on linking the battery to the output of the voltage regulator.

2. Charge Controller:

• To secure the battery from overcharging and handle the charging procedure, aim to include a Charge Controller subsystem. This is considered as an optional choice.

6. Connect and Configure Blocks
7. Connect Blocks:

• In order to indicate the flow of electrical signals from the transmitter to the receiver and into the battery, every block has to be linked in a proper manner. The way of assuring this is considered as crucial.

2. Set Parameters:

• Typically, to set up its metrics such as inductance, frequency, resistance, voltage rates, capacitance, it is better to double-click every block.

3. Add Measurement and Visualization:

• In order to track the current and voltage at various points in the circuit, append Voltage Measurement and Current Measurement blocks (from the Simscape > Foundation Library > Electrical > Sensors library).
• To visualize the signals at the time simulation, it is appreciable to link these measurement blocks to Scope blocks.

7. Run the Simulation
8. Set Simulation Parameters:

• It is advisable to click on “Simulation” > “Model Configuration Parameters.”
• Aim to configure the simulation time and solver choices.

2. Start Simulation:

• In order to begin the simulation, click on the “Run” button.
• Through the utilization of Scope blocks, examine the waveforms and charging procedure.

8. Analyze Results
9. Examine Waveforms:

• At various phases of the circuit, investigate the current and voltage waveforms by employing the Scope blocks.
• It is significant to validate that the rectifier and voltage regulator are working in an appropriate manner and that the receiver coil is obtaining power from the transmitter coil.

2. Evaluate Charging Performance:

• The charging depiction of the battery has to be examined to assure that it is charging in a secure and effective manner.
• Whenever required, adapt circuit metrics in order to enhance effectiveness.

Instance Simulink Model Diagram

[Voltage Source] –> [Resistor] –> [Inductor (Transmitter Coil)] ~~~ [Inductor (Receiver Coil)] –> [Diode] –> [Capacitor] –> [Controlled Voltage Source] –> [Battery]

[Sine Wave] –> [Voltage Source]

[Voltage Measurement] and [Current Measurement] blocks at various points