Why some switch power there are two switch tube? Two transformers, one big and one small series
There are four have not seen a transformer to promote a transformer on the main transformer, two tubes, but not push-pull or half bridge
With a small push large, compound use, increase the power supply
Because depending on the design requirements, the switching transformer can be oscillating and output a common transformer, or it can be oscillating and outputting two separate transformers. General small switching power supply (such as razor charger, cell phone charger, etc.), are a transformer, and require a higher power (such as computer power), is the two transformers. Switching transformers need to oscillate and output, the two circuits are single transformer transformer single switching power supply; separate use of the two transformer switching power supply.
Switching power supply (switch: Power Supply), also known as switching power supply, switching converter, is a high-frequency power conversion device. Its function is a standard voltage, through the different forms of architecture to convert the user to the required voltage or current.
