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CN-224233565-U - Rectification control circuit of notebook adapter

CN224233565UCN 224233565 UCN224233565 UCN 224233565UCN-224233565-U

Abstract

The application relates to a rectification control circuit of a notebook adapter. The rectification control circuit of the notebook adapter comprises an input module, a rectification module and an output module, wherein the rectification module comprises a chip PU1, a switch unit and a current-limiting filtering unit, the chip PU1 is electrically connected with the input module, the switch unit is electrically connected with the chip PU1, the current-limiting filtering unit is electrically connected with the chip PU1, and the output module is electrically connected with the current-limiting filtering unit. The scheme provided by the application can output stable voltage, replaces a TL431 voltage stabilizer and eliminates complex external resistors and other elements.

Inventors

  • ZHANG HAO
  • WANG ZHONGYU
  • WU HAOHUI
  • LI JIAGANG

Assignees

  • 惠州高盛达光电技术有限公司

Dates

Publication Date
20260512
Application Date
20250311

Claims (10)

  1. 1. A rectification control circuit of a notebook adapter, comprising: an input module; The rectification module comprises a chip PU1, a switch unit and a current-limiting filter unit, wherein the chip PU1 is electrically connected with the input module, the switch unit is electrically connected with the chip PU1, the current-limiting filter unit is electrically connected with the chip PU1, and the model of the chip PU1 is TEA2095TE; and the output module is electrically connected with the current-limiting filtering unit.
  2. 2. The rectification control circuit of a notebook adapter according to claim 1, wherein the switch unit comprises a resistor PR1, a resistor PR2, a MOS tube PQ1 and a MOS tube PQ2, a first end of the resistor PR1 is electrically connected to the chip PU1, a second end of the resistor PR1 is electrically connected to the first end of the resistor PR2 and the first end of the MOS tube PQ1, a second end of the resistor PR2 and the second end of the MOS tube PQ1 are electrically connected to the first end of the MOS tube PQ2, and a second end of the MOS tube PQ2 is grounded.
  3. 3. The rectification control circuit of a notebook adapter according to claim 1, wherein the switch unit comprises a resistor PR4, a resistor PR5, a MOS transistor PQ3 and a MOS transistor PQ4, a first end of the resistor PR4 is electrically connected to the chip PU1, a second end of the resistor PR4 is electrically connected to the first end of the resistor PR5 and the first end of the MOS transistor PQ3, a second end of the resistor PR5 and the second end of the MOS transistor PQ3 are electrically connected to the first end of the MOS transistor PQ4, and a second end of the MOS transistor PQ4 is grounded.
  4. 4. The rectification control circuit of a notebook adapter according to claim 2, wherein the current limiting filter unit comprises a capacitor PEC3, a capacitor PC9, a resistor PR3 and a capacitor PC5, a first end of the capacitor PEC3 is electrically connected to the chip PU1, a second end of the capacitor PEC3 is grounded, a first end of the capacitor PC9 is electrically connected to the first end of the capacitor PEC3, a second end of the capacitor PC9 is grounded, a first end of the resistor PR3 is electrically connected to the chip PU1, a first end of the capacitor PC5 is electrically connected to the second end of the resistor PR3, and a second end of the capacitor PC5 is grounded.
  5. 5. The rectification control circuit of a notebook adapter according to claim 1, wherein the input module comprises a transformer T1, a capacitor PC6, a capacitor PC7 and a capacitor PC8, a first end of the capacitor PC6 is electrically connected to the transformer T1, a second end of the capacitor PC6 is grounded, a first end of the capacitor PC7 is electrically connected to the first end of the capacitor PC6, a second end of the capacitor PC7 is grounded, a first end of the capacitor PC8 is electrically connected to the transformer T1 and the chip PU1, and a second end of the capacitor PC8 is grounded.
  6. 6. The rectification control circuit of a notebook adapter according to claim 5, wherein said input module further comprises a capacitor PC4, a first end of said capacitor PC4 being electrically connected to said transformer T1, a second end of said capacitor PC4 being grounded.
  7. 7. The rectification control circuit of a notebook adapter according to claim 5, wherein said input module diode PD1 further comprises a first terminal of said diode PD1 electrically connected to said transformer T1, and a second terminal of said diode PD1 electrically connected to said chip PU 1.
  8. 8. The rectification control circuit of a notebook computer adapter according to claim 5, wherein said input module further comprises a capacitor PC1, a capacitor PC2 and a capacitor PC3, a first end of said capacitor PC1 is electrically connected to said transformer T1, a second end of said capacitor PC1 is grounded, a first end of said capacitor PC2 is electrically connected to said first end of said capacitor PC1, a second end of said capacitor PC2 is grounded, a first end of said capacitor PC3 is electrically connected to said transformer T1 and said chip PU1, respectively, and a second end of said capacitor PC3 is grounded.
  9. 9. The rectification control circuit of a notebook adapter according to claim 4, wherein said output module comprises a plug-in terminal PCON1, said plug-in terminal PCON1 being electrically connected to a second terminal of said resistor PR 3.
  10. 10. The rectification control circuit of a notebook adapter according to claim 9, wherein said output module further comprises a capacitor PEC1 and a capacitor PEC2, a first end of said capacitor PEC1 being electrically connected to said plug-in terminal PCON1, a second end of said capacitor PEC1 being grounded, a first end of said capacitor PEC2 being electrically connected to said plug-in terminal PCON1, and a second end of said capacitor PEC2 being grounded.

Description

Rectification control circuit of notebook adapter Technical Field The utility model relates to the technical field of circuit design, in particular to a rectification control circuit of a notebook adapter. Background The notebook adapter is mainly used for converting alternating current into direct current and providing the required electric energy for the notebook computer. In the related art, most of the current voltage stabilizing circuits of notebook adapters adopt TL431 voltage stabilizers, and the stability of output voltage is controlled by comparing and amplifying feedback of the output voltage with input reference voltage, so that the quick response to load change is realized, and the stability of the output voltage is kept. However, the TL431 voltage stabilizer has high requirements for precision and stability of elements such as an external resistor, and a circuit is relatively complex. Disclosure of utility model The utility model aims to overcome the defects in the prior art, and provides a rectification control circuit of a notebook adapter, which can replace a TL431 voltage stabilizer and eliminate elements such as a complex external resistor. The aim of the utility model is realized by the following technical scheme: The application provides a rectification control circuit of a notebook adapter, which comprises an input module, a rectification module and an output module, wherein the rectification module comprises a chip PU1, a switch unit and a current-limiting filter unit, the chip PU1 is electrically connected with the input module, the switch unit is electrically connected with the chip PU1, the current-limiting filter unit is electrically connected with the chip PU1, and the output module is electrically connected with the current-limiting filter unit. The switch unit comprises a resistor PR1, a resistor PR2, a MOS tube PQ1 and a MOS tube PQ2, wherein the first end of the resistor PR1 is electrically connected with the chip PU1, the second end of the resistor PR1 is electrically connected with the first end of the resistor PR2 and the first end of the MOS tube PQ1 respectively, the second end of the resistor PR2 and the second end of the MOS tube PQ1 are electrically connected with the first end of the MOS tube PQ2 respectively, and the second end of the MOS tube PQ2 is grounded. The switch unit comprises a resistor PR4, a resistor PR5, a MOS tube PQ3 and a MOS tube PQ4, wherein the first end of the resistor PR4 is electrically connected with the chip PU1, the second end of the resistor PR4 is electrically connected with the first end of the resistor PR5 and the first end of the MOS tube PQ3 respectively, the second end of the resistor PR5 and the second end of the MOS tube PQ3 are electrically connected with the first end of the MOS tube PQ4 respectively, and the second end of the MOS tube PQ4 is grounded. The current limiting filter unit comprises a capacitor PEC3, a capacitor PC9, a resistor PR3 and a capacitor PC5, wherein a first end of the capacitor PEC3 is electrically connected with the chip PU1, a second end of the capacitor PEC3 is grounded, a first end of the capacitor PC9 is electrically connected with the first end of the capacitor PEC3, a second end of the capacitor PC9 is grounded, a first end of the resistor PR3 is electrically connected with the chip PU1, a first end of the capacitor PC5 is electrically connected with the second end of the resistor PR3, and a second end of the capacitor PC5 is grounded. The input module comprises a transformer T1, a capacitor PC6, a capacitor PC7 and a capacitor PC8, wherein a first end of the capacitor PC6 is electrically connected with the transformer T1, a second end of the capacitor PC6 is grounded, a first end of the capacitor PC7 is electrically connected with the first end of the capacitor PC6, a second end of the capacitor PC7 is grounded, a first end of the capacitor PC8 is respectively electrically connected with the transformer T1 and the chip PU1, and a second end of the capacitor PC8 is grounded. The input module further comprises a capacitor PC4, a first end of the capacitor PC4 is electrically connected with the transformer T1, and a second end of the capacitor PC4 is grounded. The input module diode PD1 further includes an electrical connection between the first end of the diode PD1 and the transformer T1, and the second end of the diode PD1 is electrically connected to the chip PU 1. The input module further comprises a capacitor PC1, a capacitor PC2 and a capacitor PC3, wherein a first end of the capacitor PC1 is electrically connected with the transformer T1, a second end of the capacitor PC1 is grounded, a first end of the capacitor PC2 is electrically connected with the first end of the capacitor PC1, a second end of the capacitor PC2 is grounded, a first end of the capacitor PC3 is respectively electrically connected with the transformer T1 and the chip PU1, and a second end of the capacitor PC3 is grounded. The ou