What is a switching power supply?
A power source and a power source for varying electrical energy
Switching power supply is a circuit of electrical appliances working in switching power supply state, is a kind of power electronic circuit. Switching power supply is also a power supply that uses modern power electronics technology to control the time ratio of switching tube to turn on and off and maintain stable output voltage. Switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET.
The forms of switching power supply include
AC-DC-DC
DC-AC
DC-DC
AC-DC-AC
Advantages of switching power supply
Low power consumption and high efficiency
Small size, light weight
Wide range of voltage regulator
High filtering efficiency
Various circuit forms
The performance specifications of the switching power supply include
Input voltage range
Output voltage power
The output ripple coefficient
Output voltage regulator precision
Voltage adjustment rate
Load adjustment rate
Working Environment
Electromagnetic compatibility
Security
Common faults of the switching power supply
overload
overheating
Difficulty in starting
Ripple and ripple interference
At present, switching power supply is widely used in almost all electronic equipment with the characteristics of small, light weight and high efficiency. It is an indispensable power supply mode for the rapid development of the electronic information industry. Switching power supply is widely used in scientific research equipment, industrial control equipment, military equipment, LED lighting, power equipment, instrumentation, air purifier, electronic refrigerator, communication equipment, computer cases, digital products.