Dual DC MOS tube drive circuit (for model aircraft)

Introduction: Dual-channel DC MOS tube drive circuit requires an external battery. The signal line is connected to the aircraft model receiver. It can be controlled using the 5-channel remote control. The output end can be connected to peripherals such as lights, active buzzers, and motors (need to be connected in series separately). current limiting resistor)

Schematic PCB

STC8A8K

Introduction: This project is a BitBoy game console with a 0.96-inch OLED display.

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nrf52832DEV

Introduction: This project is Nordic nrf52832 development board

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PT100 temperature measurement circuit

Introduction: PT100 temperature measurement circuit, bridge + LM358 operational amplifier measurement signal

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FM radio-all triode construction

Introduction: This circuit scheme is designed by the master of S53MV. It uses ordinary low-frequency transistors to build an FM radio. Note that it is an FM radio, not a simple low-frequency AM.

Schematic PCB

Two articles about 5v to 3.3Buck module

Introduction: RY3415 and PL5900 panel use PL5900 with 3.3V fixed seal

Schematic PCB

[Successful test] Student adjustable power supply

Introduction: Adjustable power supply design based on LM2596

Schematic PCB

[Successful actual test] Water leakage detection alarm

Introduction: For some reason, the fish tank at home always overflows. Often by the time it is discovered, the room is already ready for swimming. In order to prevent such accidents from happening again (for sure), I designed this low-cost, efficient water leakage detection alarm.

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3pin fan 4pin-pwm

Introduction: Put an ordinary 3pin fan on a PC with 4pin pwm

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Shredder control system

Introduction: Analog circuit solution using CBB capacitor half-wave rectification and voltage reduction

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Isolated flyback switching power supply

Introduction: Flyback Isolated Switching Power Supply

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BUCK switching power supply

Introduction: DC-DC switching power supply

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audio_borad

Introduction: for testing

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SOP-8 package differential operational amplifier single-ended to differential Demo

Introduction: The cover photo of another operational amplifier single-ended to differential conversion verification board will be added tomorrow.

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lmz1

Introduction: The fourth assignment

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[Changshu Institute of Technology] Differential Amplification Circuit Blue Cat

Introduction: Introduction: Use the 51 microcontroller for DA output to obtain a sine wave. Through the capacitor and inverter, an adjustable sine wave is output. Build a differential amplifier circuit test circuit according to the circuit shown in the figure, reserve a test interface, and test the signal.

Schematic PCB

TPA6120A2YFMK

Introduction: VQFN packaged TPA6120A2 headphone power amplifier small module

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FP5139 buck-boost module

Introduction: A common buck-boost module on Xbao, with an input of 5-30V and an adjustable output voltage of 0.5-30V.

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Ultra-small boost/adjustable boost module

Introduction: This module is a boost module based on MC34063 power chip

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Build NE555 with pure chip components

Introduction: This is a NE555 built purely with chip components.

Schematic PCB