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Electronics and Electrical Engineering Application Notes

Read the latest electronics engineering product design Application Notes.

Category: Sensors

All Application Notes

Current Sensing in an H-Bridge

The semiconductor industry has always looked for improvements in creating technology that has the ability to enable higher power efficiency systems. One such circuit is an H-bridge. An H-bridge is ...

Analog Electronics Design to Improve Performance of Ultrasonic Gas Flow Meter

Transit-time ultrasonic gas flow meters have gained acceptance in applications for gas transfer distribution. Advantages of this technology include: wide measuring range, relatively high accuracy, good repeatability, negligible pressure drop ...

Physical Layer HDMI Receiver Using GTP Transceivers

The High-Definition Multimedia InterfaceTM (HDMI) I/O standard utilizes a 3.3V terminated transition minimized differential signaling (TMDS) standard. Although TMDS signaling can be received natively using the Spartan®-6 FPGA SelectIOTM interface, using ...

Pulse Oximeter Design Using Microchip’s Analog Devices and dsPIC® Digital Signal Controllers

A pulse oximeter monitors the oxygen saturation (SpO2) of a human’s blood based on the red light (600- 750 nm wavelength) and infrared light (850-1000 nm wavelength) absorption characteristics of ...

White LED Driver Circuits for Off-Line Applications using Standard PWM Controllers

As high-efficiency ultra-bright white LEDs come down in cost, they are approaching cost parity with conventional mercury vapour, HID quartz metal halide and high/low pressure sodium lighting on a cost ...

Green Current Mode PWM Controller FAN7601

This application note describes the operation and features of the FAN7601. This device is a BCDMOS programmable frequency current mode PWM controller which is designed for off-line adapter applications and ...

Guidelines For Designing Touch Sensing Applications

This application note describes the layout and mechanical design guidelines used for touch sensing applications. Capacitive sensing interfaces provide many advantages compared to mechanical user interfaces. They offer a modern ...

Reflective Optical Sensor SFH 7740

The SFH 7740 is a very small reflective optical sensor for short distances with digital output. With dimensions of only 3.7 x 3.7 x 1 mm, and surface-mount solder contacts ...

AH180 MicroPower Omnipolar Hall-Effect Sensor Switch

AH180 is a low-power Omnipolar Hall-Effect Sensor Switch fabricated using an advanced CMOS process. The term “micropower” accurately describes the low-power capability of AH180 in both full operating and idle ...

Microchip CTMU for Capacitive Touch Applications

This application note describes the use of Microchip's Charge Time Measurement Unit (CTMU) for capacitive touch applications. The CTMU is an excellent peripheral for use in touch sensing applications. The ...