منبع تغذیه یک مدار الکترونیکی برای داشتن ولتاژ خروجی ثابت DC، از ولتاژ ورودی متناوب می باشد.منبع تغذیه سوئیچینگ را به اختصار (Switched-mode power supply SMPS ) می نامند.
منبع
تغذیه الکترونیکی شامل یک تنظیم کننده جریان برای کارایی بالا در هنگام
تغییر توان الکتریکی می باشد. برای راه اندازی تجهیزات الکترونیکی و
الکتریکی نیاز به ولتاژ و جریان خاصی است که در طراحی باید لحاظ گردد و
وظیفه اصلی این سوییچینگ تغذیه، تهیه ولتاژ DC خروجی قابل تنظیم با سطح
جریان متفاوت، می باشد.
Description:
AC-DC Power Supplies are
one of the most common power supplies in use today. In general, the
specific output is obtained from a 120V AC or 240V AC input using a
combination of transformers, diodes, and transistors. AC-DC Power
Supplies can be of two types: regulated power supplies and unregulated
power supplies. Regulated power supplies come in two AC to DC styles:
Switching regulated AC to DC, Linear regulated AC to DC.
All power
supplies have a power input connection, which receives energy in the
form of electric current from a source, and one or more power output
connections that deliver current to the load. The source power may come
from the electric power grid, such as an electrical outlet, energy
storage devices such as batteries or fuel cells, generators or
alternators, solar power converters or another power supply.
Such
power supplies will employ a transformer to convert the input voltage to
a higher or lower AC voltage. A rectifier is used to convert the
transformer output voltage to a varying DC voltage, which in turn is
passed through an electronic filter to convert it to an unregulated DC
voltage.
The power supply of an electrical system tends to generate
much heat. The higher the efficiency, the more heat is pulled away from
the unit.
Power supplies often have protection from the short circuit
or overload that could damage the supply or cause a fire. Fuses and
circuit breakers are two commonly used mechanisms for overload
protection
Application:
Used for all types of sensitive electronic devices with 24V 1A input
Surveillance cameras
Flow table
LED
Convert AC to DC voltage
DC consumers
Specification:
Color: Silver
Input Voltage: AC 110-240V
Output Voltage: 24V DC
Output Current: 1.0A
Output Power : 25W
Shell Material: Metal case / Aluminum base
Protection: Shortage of protection, protection from overload, over voltage protection
Work Efficiency: 80
Output Ripple Noise: 100mV
Voltage Regulation: 0.2