In this tutorial, we are demonstrating a project of a solar-powered AM radio receiver circuit in detail. Basically, a radio receiver is an electronic device that receives radio waves and converts the data conveyed by them into a usable structure. However, radio receivers are fundamental parts of all frameworks that utilize radio. Thus, the data delivered by the recipient might be sound, moving pictures (TV), or advanced data.
A radio receiver is a separate piece of electronic hardware or an electronic circuit inside another device. Hence, solar energy is used to power the AM Radio Receiver.
Hardware Components
The following components are required to make AM Receiver Circuit
| S.no | Components | Value | Qty |
|---|---|---|---|
| 1 | IC | MK484 | 1 |
| 2 | Transistor | 9014 | 2 |
| 3 | Headphone | – | 1 |
| 4 | Solar Cell | 1.5V | 1 |
| 5 | Variable Capacitor | 130pF | 1 |
| 6 | Resistor | 100K, 1K, 7.5K, 270Ω | 2, 1, 1, 1, 1 |
| 7 | Capacitor | 0.01µF, 0.1µF, 1µF, 0.022µF | 1, 1, 2, 1 |
| 8 | Variable Resistor | 10K | 1 |
| 9 | Inductor | – | 1 |
MK484 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of MK484
AM Receiver Circuit
Working Explanation
Accordingly, the circuit is worked around an MK484 AM radio IC. MK484 IC is a good quality AM receiver IC that comes in the TO92 transistor package and requires just not many outer segments since all the essential hardware like RF detector, AGC, and RF amplifier are incorporated inside the IC. The voltage source of this radio circuit is a 1.5volt solar-oriented cell yet you can likewise utilize a 1.5volt battery in the spot of a solar-based cell whenever wanted. Moreover, the two 9014 transistors are utilized to amplify the sound output of the IC. Hence, the Coil L1 is equivalent to 55 turns of 0.315mm (30 swg) enameled copper wire coiled on a 10mm x 100mm long ferrite pole. You can likewise utilize any comparative ICs like YS414 and TA7642 in the spot of MK484. The sensitivity and selectivity can be additionally expanded with the assistance of the AM loop antenna.
Applications and Uses
The Solar Power AM Radio Receiver is used in the following applications:
- It is likewise utilized in radar technology, Radio telescope, and VOR receiver.
- The circuit is also utilized in the Global navigation satellite system (GNSS) receiver.
