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Spacewalker LNA 434 MHz is Designed to Improved Satellite Signal Reception
The Spacewalker LNA 434 MHz is a specialized Low-Noise Amplifier designed to improve reception of 70 cm band CubeSat signals, particularly in urban areas with high RF interference. It features Qorvo QPL9547 LNA ICs for effective amplification, includes double amplification and...
Continue ReadingThermal Mass Air Flow Sensor – Constant Temperature Anemometer
The CTA mode (Constant Temperature Anemometer) consists of a simple feedback circuit for temperature regulation of the heater on the flow sensor and, as flow speed changes the thermal energy loss by the heater changes. By adapting controllers, a constant temperature difference between...
Continue Reading12-75V Input to 10V Output DC-DC Buck Converter
This is a versatile synchronous Buck DC/DC converter built using the LM5007 chip. It operates with an input voltage range 12V to 75VDC, and provides 10V/250mA output. The regulator can provide load current up to 400mA, but it is advisable to draw only 250mA due to the small thermal...
Continue Reading10μA-10mA Low-Side Current Sensor
This single-supply, low-side, current-sensing solution accurately detects load current between 10μΑ and 10mA. A unique yet simple gain-switching network was implemented to measure the three-decade load current range accurately. The linear range of the output is from 100mV to 4.90V....
Continue ReadingPrecision Switched Integrator Transimpedance Amplifier
This project is based on IVC102 chip from Texas Instruments. This chip is a precision integrating amplifier with FET OPAMP, integrating capacitors, and low leakage FET switches. It integrates low-level input current for a user-determined period, storing the resulting voltage on the...
Continue ReadingMYIR Launches New SOM Based on Allwinner T527 Octa-core Processor
cover photo: MYC-LT527 Top-view and Bottom-view (delivered with shielding cover installed by default) MYIR has launched the MYC-LT527, a cost-effective System-on-Module (SoM) that is equipped with the Allwinner T527 AI platform SoC. This SoC delivers superior computing power with its...
Continue ReadingWeAct ESP32H2-N4: A Low-Cost Development Board with Bluetooth 5.2 LE, Zigbee 3.0, and Thread Connectivity
The WeAct ESP32H2-N4 is an affordable development board featuring the ESP32-H2 wireless microcontroller, offering Bluetooth 5.2 LE, Zigbee 3.0, and Thread connectivity. Priced at just $5.70 plus shipping, it provides a cost-effective solution for IoT (Internet of Things) projects...
Continue Reading12V Step-Up DC-DC Converter from 1.8V to 5V Input
This is a DC/DC converter that combines a traditional voltage feedback loop and a unique current feedback loop to operate as a constant-current, constant-voltage source. The project has been designed using the LT1618 chip. The board provides 12V/150mA output, from input supply 1.8V to...
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