kytkentävirtalähteiksi

Kytkentävirtalähde, often referred to as a switching power supply (SMPS), is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Unlike linear power supplies, which dissipate excess voltage as heat, kytkentävirtalähteet utilize a switching element, such as a transistor, that is rapidly switched on and off. This switching action, controlled by a feedback loop, regulates the output voltage. The high-frequency switching allows for the use of smaller, lighter transformers and inductors, making these power supplies significantly more compact and energy-efficient.

The basic operation involves rectifying the incoming AC voltage, smoothing it, and then chopping it at high frequency. This chopped DC is then fed through a transformer, which can step the voltage up or down. The output of the transformer is again rectified and filtered to produce the desired DC output voltage. A control circuit monitors the output voltage and adjusts the switching frequency or duty cycle to maintain a stable output. Common applications for kytkentävirtalähteet include personal computers, mobile phone chargers, televisions, and various industrial control systems. Their high efficiency makes them an environmentally friendly choice, reducing wasted energy as heat.