Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to manage and regulate power from multiple 3.7V batteries through a protection board, a step-up boost converter, and a USB regulator. The circuit includes a push switch for user control and a TP4056 module for battery charging protection.

Component List

1. 3.7V Battery

   • Description: Standard lithium-ion battery.
   • Pins: +, -

2. 3S 10A Li-ion 18650 Charger Protection Board Module

   • Description: Protection board for 3S Li-ion battery packs.
   • Pins: B+, B2, B1, P-, P+, B-

3. Step Up Boost Power Converter, Adjustable Voltage Regulator

   • Description: Boost converter to step up voltage.
   • Pins: VOUT+, VOUT-, VIN+, VIN-

4. USB Regulator

   • Description: Regulates voltage to USB standard.
   • Pins: VIN+, VIN-, 5V_USB_VO

5. TP4056 Battery Charging Protection Module (Type C)

   • Description: Battery charging and protection module.
   • Pins: OUT +, B+, B-, OUT -, +, -

6. 2Pin Push Switch

   • Description: Simple push switch for user control.
   • Pins: Input +, Output +

Wiring Details

3.7V Battery

• Battery 1:

  • + connected to B1 of the 3S 10A Li-ion 18650 Charger Protection Board Module.
  • - connected to B- of the 3S 10A Li-ion 18650 Charger Protection Board Module.

• Battery 2:

  • + connected to B+ of the 3S 10A Li-ion 18650 Charger Protection Board Module.
  • - connected to B2 of the 3S 10A Li-ion 18650 Charger Protection Board Module.

• Battery 3:

  • + connected to B2 of the 3S 10A Li-ion 18650 Charger Protection Board Module.
  • - connected to B1 of the 3S 10A Li-ion 18650 Charger Protection Board Module.

3S 10A Li-ion 18650 Charger Protection Board Module

• B1 connected to + of Battery 1 and - of Battery 3.
• B- connected to - of Battery 1.
• B+ connected to + of Battery 2.
• B2 connected to - of Battery 2 and + of Battery 3.
• P- connected to VIN- of the Step Up Boost Power Converter and B- of the TP4056 Battery Charging Protection Module.
• P+ connected to VIN+ of the Step Up Boost Power Converter and B+ of the TP4056 Battery Charging Protection Module.

Step Up Boost Power Converter, Adjustable Voltage Regulator

• VIN- connected to P- of the 3S 10A Li-ion 18650 Charger Protection Board Module and B- of the TP4056 Battery Charging Protection Module.
• VIN+ connected to P+ of the 3S 10A Li-ion 18650 Charger Protection Board Module and B+ of the TP4056 Battery Charging Protection Module.
• VOUT+ connected to Input + of the 2Pin Push Switch.
• VOUT- connected to VIN- of the USB Regulator.

USB Regulator

• VIN+ connected to Output + of the 2Pin Push Switch.
• VIN- connected to VOUT- of the Step Up Boost Power Converter.

TP4056 Battery Charging Protection Module (Type C)

• B- connected to P- of the 3S 10A Li-ion 18650 Charger Protection Board Module and VIN- of the Step Up Boost Power Converter.
• B+ connected to P+ of the 3S 10A Li-ion 18650 Charger Protection Board Module and VIN+ of the Step Up Boost Power Converter.

2Pin Push Switch

• Input + connected to VOUT+ of the Step Up Boost Power Converter.
• Output + connected to VIN+ of the USB Regulator.

Code

No microcontroller code is included in this circuit.