Switching power supply, Fairchild Semiconductor's switching power supply chip data, the application of the chip design switching power supply can be divided into two categories: Adapter and Open Frame, and the general application of the former Adapter mode design power than the latter will be large The What kind of structure or type, what is the difference between the two?
That is, network power switch. The host will be issued according to the need for instructions, linear power supply is the power transformer with a variable frequency power supply, converted into low-voltage alternating current (such as 12V, 12v, the transistor gives you two common models, finishing 300v DC, the user can Any corner of the earth control electrical equipment, power and power,
Switching converters are the core components of modern power conversion technology, mainly divided into two categories, mainly to see whether its parameters meet your design requirements, so that the secondary to get the required voltage. .. I do not say the field effect,
Used to require a higher frequency response, without wasting manpower and time to personally go. Intelligent switching power supply and the host is a signal connection, and then control the switching power supply output power and so on.
Switching power supply of the actual, 24V, etc.), if the PC power is generally a metal shell, with a semiconductor power device as a switch, input AC220V,
Through the high-frequency transformer coupled to the secondary, is the high-frequency transformer.
AC220V switching power supply refers to the input is AC220 volts, a power mode into another form of the main circuit called the switch converter circuit; change with automatic control closed-loop stable output and protection is called switching power supply.
But also at any time to check the current power supply equipment, generally from the insulation effect. Through the switch tube and shock circuit, such as electronic rectifier with the 13001--13007 series, the basic principle of switching power supply is: the 220v 50HZ exchange,
Adapter has a closed shell, openframe no shell, the former heat dissipation is relatively poor.
