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Diodes – Rectifiers – Single

SE12DJHM3/I application field and working principle

The SE12DJHM3/I is a single-chip full-wave rectifier chip with fast-recovery performance. It has three pins, two of which are anode pins and one of which is the cathode pin. It is widely used in areas such as rectification, filtering, and voltage stabilization. As long as it is connected to the corresponding power supply, it can work.

In terms of working principle, the SE12DJHM3/I can be explained as follows: when an AC power supply is connected to the SE12DJHM3/I\'s anode pins, the two anode pins alternate between being positive and negative. When the pin is positive, the chip\'s internal P-type semiconductor, which has a high resistance, will be blocked, while the N-type semiconductor, which has a low resistance, will be conducting. As a result, the current will flow in a certain direction and cause the voltage to increase. At the same time, the capacitor inside the chip will be slowly charged up, and the voltage on the capacitor will slowly increase. When the energy stored in the capacitor is large enough, the pin will become negative and the chip will be reverse-biased. Under this condition, the P-type semiconductor will be conducting and the N-type semiconductor will be blocked, so that the current will flow in the opposite direction and the voltage will decrease gradually. When the voltage is low enough, the pin will become positive again and the working process will continue.

The SE12DJHM3/I also has several application fields:

• Rectification: the chip can be used to convert AC power supply into DC power supply.
• Filtering: the chip can be used to filter out the noise in the power supply.
• Voltage stabilization: the chip can be used to maintain the voltage at a certain level.

In conclusion, the SE12DJHM3/I is a single-chip full-wave rectifier chip with fast-recovery performance. It has three pins, two of which are anode pins and one of which is the cathode pin. It is widely used in areas such as rectification, filtering, and voltage stabilization, and is an important component for ensuring the stable operation of the corresponding circuit.

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