The switch k is repeatedly turned on and off at a certain time interval. When the switch k is turned on, the input power source e is provided to the load rl through the switch k and the filter circuit, and the power source e provides energy to the load during the entire switch on period; When the sw... read more
1. You must choose a regular factory, supermarket or specialty store, and choose branded products; choose the corresponding (matching) product according to the power of the electrical appliance 2. It is necessary to see if the product logo is complete, whether there is a manufacturer’s trademark, wh... read more
Poor quality of plugs, sockets and converters is an important cause of electrical fires. The quality problems of small plugs, sockets and converters will cause serious harm to the personal and property safety of consumers. Therefore, when consumers buy plugs, sockets, converters, and switches, they ... read more
Sub-plugs, sockets and connectors. Plugs and sockets are generally divided into two-pole plug and two-pole with grounding plug. Electricity flows, so I tell everyone here that as long as any electrical appliance is not in use, you must unplug it to save electricity. For power products, there are usu... read more
1. British plug This plug can be equipped with two-core wires and three-core wires. British plug current can have 3A, 5A, 7A, 10A, 13A, etc., and the voltage is 250V. 2. Argentina plug The plug in Singapore uses the British system plug. The plugs are all three-core, and the current of the Singapore ... read more
1. Introduction to switching power supply: Our common power supplies, including power adapters and chargers, are all classified as switching power supplies. Switching power supply is a kind of power supply that uses the time ratio of switching on and off of the control switch tube to maintain a stab... read more
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