Low Voltage Smart Plug Power Reference: A Guide for Hobbyists
The Problem:
Low voltage in smart plugs can lead to frequent disconnections, malfunctioning devices, or damage to sensitive electronics. This is a common issue in India due to frequent voltage drops, which affect devices like Wi-Fi routers, smart home appliances, and chargers.
The Solution :
To fix this, you can use a DC-DC buck converter or a voltage regulator module to stabilize the output voltage. These modules convert fluctuating high or low input voltages to a steady, regulated output voltage, ensuring safe and efficient operation.
Practical Example :
Suppose you’re using a smart plug to power a Wi-Fi router that needs 12V, but due to low voltage, the plug is delivering only 9V. This causes the router to reboot frequently, affecting internet connectivity. To solve this, you can use an LM2596 DC-DC buck converter to adjust the output to a stable 12V, preventing fluctuations and ensuring uninterrupted operation.
Sample Calculation :
If the router requires 12V at 1A, the power requirement is:
P=V×I=12V×1A=12W
To maintain this output, a DC-DC buck converter can be used to step down higher input voltage (e.g., 24V) to 12V while maintaining consistent power delivery.
Product Suggestions :
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