The power module can provide power supply for digital or simulated loads, the application is very extensive, the foundation of many projects, the number of power modules on the Circuit City, sorted out 8 representatives, more good information waiting for you to explore!
1. Programmable pocket power supply with an OLED display
Design plan based on STM32F103Zet6 simple uninterrupted DC power supply (schematic + source program)
Designed and produce simple uninterruptible DC currents for battery energy storage devices, realize the charge and discharge function of the battery, and the function can be set by the button, and can be automatically converted. The battery pack consists of 18650 lithium ion batteries. The absolute value of the resistance resistance value used is not more than 5%.
https://www.cirmall.com/circuit/12028
2, DIY pure microcontroller mobile power 1A charging 1A output
As a hobby, we often need to power the prototype, check the voltage, current, power limitations of the project, test the newly purchased components. A variable power supply is always required in this series of work. But unfortunately, not everyone has a table / laboratory power supply. If you buy it, it is very expensive, and it is very cumbersome if you need to carry. I am looking for a programmable power supply that reduces costs, portability and productivity, which can be powered for my prototype and test components. So I decided to do one.
https://www.cirmall.com/circuit/12152
3, DIY pure microcontroller mobile power 1A charging 1A output
The mobile power is convenient, easy to carry, widely used in digital devices such as mobile phones, tablets, is a portable charger that is integrated with power supply and charging. Generally, the lithium battery is used as a storage unit to become a must-have product in daily life. This project is a pure microcontroller mobile power supply design for DIY autonomously, supports 1A current, and important chips involved in circuits include FT61F022A, N-channel MOS 3400, and P-channel MOS 3401.
https://www.cirmall.com/circuit/12456
4, two-way DC-DC converter based on STM32
The publishing content is undergraduate graduation design. According to the two-way DC-DC converter designed for 15 years, the device uses PID control, the main function is constant current charge and constant voltage output. In the charging mode, the DC power supply charges the battery pack constant current charge, 1A to 2A stepping, step in value 0.1a, the control accuracy is less than 1%, the charging efficiency is greater than 90%; the discharge mode, the battery pack constant voltage output 30V drive Load, discharge efficiency is greater than 95%, the control error is less than 0.1V; in automatic mode, the constant voltage output is 30V, the control error is less than 0.1V.
https://www.cirmall.com/circuit/12707
5, TP4056 lithium battery charging _cascading _current can set 1A or 2A_with battery protection -AD version
TP4056 is a complete single lithium ion battery with a constant current / constant voltage linear charger. The bottom of the SOP8 / MSOP8 package with a heat sink and the number of external components make TP4056 ideal for portable applications. TP4056 can be suitable for USB power and adapter power.
https://www.cirmall.com/circuit/13389
6, wireless charging _RX receiving _5W_HL6111_support WPC1.2.4 protocol wireless charging receiver -AD version
Wireless charging has two major alliance camps, and wireless charging reception chip HL611R enables comprehensive compatibility and automatic identification of WPC and AIR_Fuel mode, and supports up to 20W output power. 5W single-chip supports WPC1.2.4 protocol wireless charging receiver; supported step-down regulator with excellent transformers and efficient BYPASS methods ...
https://www.cirmall.com/circuit/13329
7, based on 51 single-chip censoon BUCK switch power supply design
Hardware system composition: STC12C5A60S2 MCU + IR2104 Drive + BUCK Circuit +1602 LCD + button;
LCD display: input voltage, preset output voltage, output current, working status (overcurrent, input undervoltage, input overvoltage)
Default output mode: constant voltage output;
Output voltage range: 0-input voltage * 90%, when the actual input voltage is 40V, the output voltage is up to 36V
Working method: BUCK buck;
Rectifier method: non-synchronous rectification;
Switching frequency: 43kHz;
Maximum conversion efficiency: 89%;
Output maximum current: 1.0A;
Overcurrent protection: overcurrent protection value 1.2A, cut in overhang;
https://www.cirmall.com/circuit/13279
8, linear power supply for Arduino project
Every time everyone needs a power supply to support their projects. People like me use ordinary mobile chargers, some people like to use 9V batteries, very few people use LIPO batteries. But I have a better way! Why don't we do your own power? Even if it is cheap than the traditional mobile charger, it has greater flexibility.
Today we will make a very small and cheap power supply, which will provide 5V output, but we can easily get 12 or 9V by replacing only a small amount of components.
https://www.cirmall.com/circuit/12761
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