Do you really understand what is a switching power supply? _

Do you really understand what is a switching power supply? 1061, 2020 - 06 - 05 14:23:56 widely use of switching power supply, it is a important part of the electronic design, small, light weight, high efficiency is the key of the future development, how to do have to know what kind of switch power supply have characteristics. Switching power supply products are widely used in industrial automation control, military industry equipment, scientific research equipment, LED lighting, industrial control equipment, communications equipment, electrical equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifier, electronic refrigerator, LCD, LED lamps and lanterns, audio-visual products, security monitoring, computer case, digital products and other fields. Switching power supply is the use of electronic switch devices, Such as, field effect transistor, SCR thyratron, etc. ) , through the control circuit, make the electronic switching device constantly 'on' and 'off', make electronic switching device to pulse modulation of the input voltage, so as to realize energy conversion. Electrical energy transformation includes: 1, AC/DC. Communication transform into dc, usually will be from the grid, two phase alternating current (ac) or 380 v, 220 v, three-phase alternating current into direct current. Low power AC/DC AC input is 220 v, high-power AC input is 380 v. According to the application field, different occasions, also known as AC/DC converter, rectifier, a power supply, communication power supply, power adapter, lighting power supply, etc. 2,DC / DC。 The dc to dc. , such as converting high voltage, low current, low voltage, high current application according to the industry, the situation is different, may be called the DC/DC converter, secondary power supply, power supply module, plate on the power supply, etc. 3、DC/AC. Dc transform into communication, according to different application, occasion, may be called UPS, inverter, grid inverter, motor controller, etc. 4、AC/AC. Communication transform into communication, product form, usually a frequency converter, used for motor control. In AC/DC, DC/DC corresponding to the two direction of industry market, industry insiders call 'switching power supply, there is a specific industry one of the high-end power supply ( Also known as the communication power supply, but the meaning of communication power supply seems to be more widely) , generally refers to the telecom room 48 v power supply, the secondary power supply, custom power supply, power supply, computer power supply, laptop etc all kinds of electrical equipment, power adapter, cell phone charger power supply, rechargeable power supply, car charger, OBC,车载充电器) On-board DC/DC converter, lighting power supply ( Can divide again for the LED power supply, electronic ballast, HID power supply) , etc. Which corresponds to the DC/AC, AC/AC industry market, people usually say it do UPS, pv ( According to the photovoltaic panels direct current into alternating current (ac)) , do energy storage, frequency converter, motor controller.