A modern take on the original Tesla Coil using electronic circuitry; this specific type is a Dual Resonance Solid State Tesla Coil. This is based on Steve Ward's original design at http://stevehv.4hv.org/SSTC5.htm and updated for modern and easily available components.
Power supply expansion shield for the WeMos D1 Mini, which is a microcontroller board based on the ESP8266 module.
2.1mm DC jack and screw terminal connections for power input.
5Vdc output, max 800mA.
7-14Vdc nominal input range, 20Vdc max input.
Input polarity protection.
# 1. Overview #
TinyUPS is a simple 5V/2.5A uninterruptible power supply with a li-ion battery as a buffer, a load sharing power path management system and an ATtiny13 for monitoring power supply and battery charge level as well as for communication with the connected device.
Adopt SW6106 lithium battery charge/discharge IC, support Type-C and Micro-usb power supply, and support charging and discharging.
5Vbuck converter based on MC34063.
Chip solution Battery power management chip SY6926QYC
SY6926 built-in 18V withstand voltage mos adapt to fast charging circuit
1 TYPE-C input, charging maximum 5A. (Default 2A)
1 TYPE-A output, discharge 2.5A. (Overload 3A)
Compatible with 4.2V 4.35V battery (selected by resistance)
With output current limit
EN control function (the circuit is enabled by default)
Battery direct welding
The ATtiny85 USB Phone Charge Guard controls and monitors the charging of phones and other devices. Voltage, current, power and energy are constantly measured via the INA219 and compared with the user limit values. It cuts off the power supply via a MOSFET when a condition selected by the user is reached. The user settings are saved in the EEPROM.
|RESET|Reset all values|...
# 1. Overview #
Powerbank based on FP6277 boost converter with 5V and 3.3V output up to 3A. Choose a good 18650 Li-Ion battery with a low internal resistance which is capable of delivering up to 7A!
LiPo battery charger, protector and 5V booster based on the IP5306 featuring:
- synchronous switch-mode charging with up to 2.1A / 91% efficiency,
- discharging with up to 2.4A,
- 5V boost converter with up to 92% efficiency,
- integrated power-path management (charging battery and 5V output at the same time),
- voltage based fuel gauge indication with 4 LEDs,
- on/off key,
- smart load detector (...
# 1. Overview #
The Power Analyzer is a programmable electronic constant current dummy load with two high side voltage and current sensors for an automatic analysis of power supplys, DC/DC converters, voltage regulators, batteries, chargers, power consumers and others. The device can be controlled via USB serial interface using a serial monitor or the provided Python skripts. Data can be exported...
Simple USB Power Tester based on ATtiny45/85 and INA219. You can switch between different screens by pressing the SET button.
Project Video: https://youtu.be/QKx8Vn_IfjU
|Voltage|3V - 12V|
|Resolution|4mV / 1mA|
Single cell LiFePO4 charging (CN3058E) and protection (HY2112) board with load sharing power path management, 3.3V output und an additional switchable output.
The board was developed for 3.3V projects that are operated both by battery and external power. The load sharing system interrupts the connection between the battery and the load when an external power supply is connected. In this case, th...
Single cell LiFePO4 charger (CN3058E), protector (HY2112) and 5V booster (MT3608) board with load sharing power path management.
The board was developed for 5V projects that are operated both by battery and external power. The load sharing system interrupts the connection between the battery and the load when an external power supply is connected. In this case, the project is powered by the exter...
A slightly different approach to USB-C power delivery by combining a PD maximum voltage trigger (IP2721, up to 20V) and a buck converter (MP2307). The output voltage can be selected via the voltage divider (R5 + R6). The maximum output current is 3A.