IP6505 fast charging circuit board - supports fast charging protocols such as Huawei and Samsung - charges mobile phone power bank

Introduction: IP6505 designed fast charging circuit board can support multiple fast charging protocols.

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2019 Question C: Line Load and Fault Detection Device +828006A

Introduction: 2019 Question C: Line Load and Fault Detection Device

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BLheli_s

Introduction: An electronic speed controller. Compatible with BLHeli_s Mod J (technically).

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0031-two frequency division

Introduction: Project number: 0031

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Digital display 936

Introduction: CNC 936 welding station

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Low noise power supply for handheld instruments

Introduction: Low-noise power module suitable for handheld instruments, input 3.3~5.5V, output +/-10V, 1000mA and +/-9V, 150mA (low noise) or +/-6V, 1000mA and +/-5V, 150mA (low noise).

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double peak detector

Introduction: Double peak detection circuit implemented using LM311, with a bandwidth of 200kHz.

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PCB_namecard PCB business card

Introduction: I made a PCB business card by myself, I hope you all have fun with it~

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[Guangxi Normal University School Competition] Waveform occurrence

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AD9834_DDS functional verification board

Introduction: DDS digital signal source based on AD9834

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MINI_WHIP active antenna

Introduction: An active antenna in the medium and short bands, which can be used as a signal enhancement for full-band radios and software radios. It has a very compact structure and can effectively replace the full-size DPGP antenna if it is well grounded.

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AC-DC adjustable voltage stabilizing module based on LM317T

Introduction: An AC-DC voltage regulator solution verification module based on LM317T. When powered by a 12.6V50Hz AC power supply, it can output a DC voltage of 3.514-14.85V with a ripple of about 200mV.

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Hi-fi Headphone Amp

Introduction: personal use amp

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Class A and B headphone power amplifier implemented by OPA2188+2SC4672

Introduction: Use OPA2188+2SC4672 to build a HuFi headphone amplifier... (Escape

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ICL8038-medium and low frequency signal source

Introduction: ICL8038-medium and low frequency signal source can output triangle waves, rectangular waves and sine waves. Frequency -10HZ～450kHz, single power supply 12V

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[Electronic Competition] Adjustable cutoff low-pass filter, based on LTC1569

Introduction: The main body of the module is based on the LTC1569-7 chip low-pass filter cut-off frequency range: 2k-300k, the transition band is very narrow

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Classic zvs circuit

Introduction: Classic zvs circuit

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fourth order filter

Introduction: fourth-order filter, xh2.54, SMA head, dual op amp

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British symmetrical field effect transistor power amplifier circuit (open source release)

Introduction: Field effect transistor wide-band amplifier, British circuit simple design style, wider frequency than integrated circuits, less distortion than electron tubes, and more details than current tubes. Circuit parameters can be adjusted according to personal preferences.

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2017_AM Signal Processing Experimental Circuit (Question F)

Introduction: AM Signal Processing Experimental Circuit (Question F) Not completed yet to be modified. Not completed yet to be modified. Not completed yet to be modified. Not completed yet to be modified. Not completed yet to be modified.

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