What is the IG power supply? What is ACC power supply? What is the connection and difference between the two?

What is the IG power supply? What is ACC power supply? What is the connection and difference between the two? IG power supply refers to the power supply that the key is turned on, that is, the power supply that is continuously turned on when the engine is started; This part of the electrical appliance supplies power to the necessary electrical appliances during the engine start-up, and it is only used when the engine is running, and it is taken from the power supply of the generator, thus avoiding the possibility of competing for power supply when charging the battery. Such as: instrument power supply, brake light power supply, airbag power supply, etc.

ACC power supply refers to the power supply when the key is turned to ACC gear, that is, the power supply to be disconnected when the engine is started. This part of the electrical equipment is generally loaded, so it doesn't have to work when the car starts. Generally, it has a little cigarette lighter power supply, air conditioning power supply, radio player power supply, wiper power supply and so on.

What is the connection between switching regulated power supply and LED driving power supply? Switching power supply,

The driving power supply of LED is constant current switching power supply, that is, the output current is fixed when the output voltage is met.

Generally speaking, the voltage of switching power supply is fixed, but when the temperature of LED rises, its voltage drop decreases. If this constant voltage source is used, the current will increase, resulting in avalanche effect (the higher the temperature, the greater the current, the greater the current, and the higher the temperature, forming positive feedback). Then burn the lamp beads.

What is the difference between eps power supply and UPS power supply? Eps power supply is a low-power multi-device power supply provided by lighting emergency power supply.

UPS power supply is a kind of energy storage equipment, which is often used as a server computer.

Uninterruptible power supply can be used as mobile power supply? What's the difference between them? Uninterruptible power supply is not as portable as mobile power supply. It's big and heavy.

What is confidence? What is pride? What is the connection and difference between the two? Confidence means that everything you do will be handled safely. Pride means not knowing what it means and always thinking that you are good at it. There should be self-confidence, sometimes there is pride, and sometimes there should not be.

Please accept it, thank you!

What is "cricket"? What is "jiaozi"? What's the difference between them? Cricket: Pronunciation (qiú? Chǐ) is a white snake in China myths and legends, but there are also legends that this snake is a dragon that made a mistake in the sky. According to legend, snakes cultured in the silver pond. The whole body is white and the snake body is thin. Snake letters are black and much longer than ordinary snakes. This kind of snake is very poisonous.

Jiao Gui: Pronunciation (jiāo chǐ) Jiao Gui is a mythical white snake. Snake letters are black and much longer than ordinary snakes. This kind of snake is very poisonous. It originated from the number of jiaozi and eventually became jiaozi. It is a monster in the legend of the ancient tomb. It looks like a cricket, but it has no eyes. It distinguishes right from wrong by yin and yang, between animals and evil spirits. But compared with evil spirits, this kind of thing retains the spirituality of animals.

What is a power tunnel? What is a shallow ditch? What's the difference between them? Same, no difference,

What is the power supply of PLC card? Elbon mentioned the power supply of PLC card and what is the difference between PLC power supply and PLC power supply? Are you talking about the internal lithium battery of PLC? The lithium batteries listed in FX2N are used to store data in the memory. After the external power supply fails, it is used to supply power and save data in the memory. The official retention time is about 200 days.

What are the so-called joint invoices and triple invoices? What's the difference between them? Single invoice, generally quota invoice, triple invoice and invoice, deduction (special VAT invoice), handwritten ticket and stub, invoice and account.