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Safe and reliable mobile phone charger processing circuit

A mobile phone charger and circuit processing technology, which is applied in the field of circuits, can solve problems such as burnt chargers and mobile phone explosions, and achieve the effect of improving power supply quality

Inactive Publication Date: 2017-08-18
CHENGDU HONGSHAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing chargers are relatively mature, there are frequent incidents that the charger is burned out or even explodes due to excessive charging current or output voltage. Therefore, how to prevent excessive current in the charger circuit or excessive output voltage from raised an important question

Method used

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  • Safe and reliable mobile phone charger processing circuit

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Embodiment

[0016] like figure 1 , the present invention provides a safe and reliable mobile phone charger processing circuit, the circuit is provided with two input terminals and two output terminals, including a transformer T, a fuse F, a first triode Q1, a second triode Q2, First diode D1, second diode D2, third diode D3, fourth diode D4, fifth diode D5, sixth diode D6, first capacitor C1, second capacitor C2, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4, the transformer T includes a primary coil and a secondary coil N3, the primary coil It includes a primary winding N1 and a secondary winding N2, the secondary winding N2 is a sampling winding, and the fourth diode D4 is a Zener diode.

[0017] The cathode of the first diode D1 is simultaneously connected to one end of the first capacitor C1, one end of the first resistor R1, one end of the second resistor R2, on...

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PUM

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Abstract

The invention discloses a safe and reliable mobile phone charger processing circuit. The circuit is provided with two input ends and two output ends, and comprises a transformer, a first triode, a second triode, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a first capacitor, a second capacitor, a third capacitor,. a fourth capacitor, a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the transformer comprises a primary coil and a secondary coil, the primary coil comprises a primary winding and a secondary winding, the secondary winding is a sampling winding, and the fourth diode is a voltage stabilizing diode. Through setting a sampling resistor and a sampling winding, the safe and reliable mobile phone charger processing circuit not only can prevent the circuit current from being too large, but also can prevent the output voltage from being too high.

Description

technical field [0001] The invention relates to a circuit, in particular to a safe and reliable mobile phone charger processing circuit. Background technique [0002] Mobile phone chargers can be roughly divided into travel chargers, seat chargers, USB chargers and maintenance chargers, and the latest one is mobile phone case chargers. Generally, users are mainly exposed to the first two types, and the most sold in the market is the travel charger. There are also various forms of travel chargers. Charger, high-end desktop charger with LCD display. Since most of the mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1 to 3 hours. We can check the performance of the charger during use. It is normal for the battery to heat up slightly in the later stage of charging. The life of the battery is unfavorable. Although many chargers have no ove...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0029H02J7/00304
Inventor 黄友华
Owner CHENGDU HONGSHAN TECH
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