Circuits & Schematics Radio
Subsection: "Radio"
Including:| Antennas Morse |
Search results: 43 Output: 1-10
- Designers often choose a super-regenerative receiver despite its frequency instability and poor selectivity for battery-powered, short-range, wireless applications in which power consumption is a major issue. Examples include remote-keyless-access ...01-03-2023
- The low-cost percentage-relative-humidity radio transmitter in Figure 1 operates in a cold-storage warehouse for vegetable storage at temperatures of 1 to 5 C. It is generally difficult to collect such data from a low-temperature area with high ...17-01-2023
- TinyPocketRadio is a simple FM stereo radio based on ATtiny13A and RDA5807MP . It's powered by a CR2032 coin cell battery and can drive 32 Ohm headphones via the 3.5 mm audio plug. The board size is 38 × 23 mm. It has a power switch and ...05-07-2021
- by Martyn Mckinney EDN Although the ubiquitous LM386 IC was designed to be used as an audio amplifier, it has a number of undocumented characteristics that can be exploited to create simple radio receiver circuits that deliver surprisingly high ...18-06-2020
- RF gain blocks (amplifiers) are popular because they offer wide bandwidth, low noise, and ease of use. They're designed to operate with a fixed value of supply current because variations in supply current cause variations in the gain, ...03-03-2018
- A basic combination of a photovoltaic panel, multiple LEDs, and a small dc-dc regulator can provide light in dark corners while also offering a modest auxiliary dc-power rail. A solar-powered, daytime-only lamp without a battery for energy storage ...14-12-2016
- Art Hogrefe EDN A number of circuits, such as level detectors and AM demodulators, benefit from a rectifier with a low offset voltage. Silicon diodes have an offset of approximately 0.6 V and do not work well in low-level circuitry. A Schottky ...14-12-2016
- The idea of using a super-regenerative radio to receive commercial FM stations can be found at various locations on the Internet. Because the circuit is so small, it might be impressive to lab visitors, especially to children. But the basic ...18-10-2016
- John Ambrose and Van Vane, Mixed Signal Integration Electronic Design Many communications and sensor applications require a bandpass filter with wide bandwidth. This filter typically requires precision resistors and capacitors to obtain an accurate ...21-04-2015
- Application Note AN-1254 December 2013 David Brandon, Scott Shoaf Various applications require the generation of two or more sinusoidal or square wave signals with a known phase relationship between them. The AD9915 DDS IC from Analog Devices, ...09-01-2014
