Circuit Protection

Short Circuit (over Current)

Short circuit protection is nearly instant protection against excessive currents or current beyond the acceptable current rating of equipment.  

PTC resettable fuse

Short Circuit Protection for (almost) Any Power Supply

 

Reverse Polarity

The proper way to make a reverse polarity protection circuit is by using a PMOS MOSFET.   A Schottky diode alone is an inefficient way to protect a circuit from reverse polarity because it requires a constant flow of current through the Schotty diode, and the output voltage will be less than the input due to the forward voltage drop of the diode.  

 

 

Under Development

 


Do you need help developing or customizing a IoT product for your needs?   Send me an email requesting a free one hour phone / web share consultation.  

 

The information presented on this website is for the author's use only.   Use of this information by anyone other than the author is offered as guidelines and non-professional advice only.   No liability is assumed by the author or this web site.  

Sensors

Sensor Calibration

Sensitivity, Resolution, Response Time, etc.

50000 PPM (5%) CO2 Sensors

MQ Gas Sensors

MQ Gas Sensors

MQ-6 LPG Gas Sensor

MQ-6 LPG Gas Sensor

MQ-7 carbon monoxide CO Gas Sensor

MQ-7 Carbon Monoxide Gas Sensor

Sensor to microcontroller / data acquisition device cables

Accelerometers

IMU / Gyroscope

Magnetometer

Audio

Thermocouple

AF Sensirion SHT40 Temperature & Humidity Sensor

Motion Sensors

object detection sensors

Object Detection Sensors

Strain Gauge

Color

Pressure

Liquid Flow Meter

Operational Amplifiers

Components

Tools

Basic Components

Suppliers

VAC

XBee I/O Line Passing

xBee wireless communication modules with Arduino

xBee wireless communication modules + Arduino

I2C bus / SPI / 1-Wire

UART TTL Serial RS-232

LoRa Communications

Triac

Light Emitting Diode (LED)

NeoPixels

4-20 mA Current Loops

Human Health & Electrical Power

HMI

imgAlt

Mobile Apps

Hall Effect Sensor

NTC Thermistor

Amplify an Analog Signal

Offset a input signal

Electric Motors

Laptop 12V Power Supply

MCP2515 CAN Bus Module

TJA1050 CAN Bus Module

1.2" 4-Digit 7-Segment LED Display

Batteries

2022 Character Display Comparison

Logic Level Converter

Circuit Protection

Diodes

PMOS / P-Channel MOSFET

Logic Level NMOS / N-Channel MOSFET

Voltage Measurement

Analog to Digital Conversion (ADC)

Variable output VDC

Turn On/Off Noisy DC Device

ADC Analog Input