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Charging device and charging method

A charging device and technology to be charged, applied in circuit devices, battery circuit devices, charging/discharging current/voltage regulation, etc., can solve the problems of terminal equipment not performing power detection, low charging safety of terminal equipment, etc., to improve safety sexual effect

Active Publication Date: 2021-01-08
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a charging device and a charging method to solve the problem that terminal equipment does not perform power detection, resulting in low charging safety of terminal equipment

Method used

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  • Charging device and charging method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0086] Suppose the first preset value is 0.5V and the second preset value is 0.7V. If the voltage of D+ pin and D- pin is 0.6V, combine image 3 The charging device 100 can be determined:

[0087] The negative terminal voltage U of comparator 101a D+ =0.6V, positive terminal voltage U R1 =0.5V, the V output according to the comparison result out1 is low level.

[0088] The negative terminal voltage U of comparator 101b D+ =0.6V, positive terminal voltage U R2 =0.7V, the V output according to the comparison result out2 is high level.

[0089] The negative terminal voltage U of the comparator 102a D- =0.6V, positive terminal voltage U R3 =0.5V, the V output according to the comparison result out3 is low level.

[0090] The negative terminal voltage U of the comparator 102b D- =0.6V, positive terminal voltage U R4 =0.7V, the V output according to the comparison result out4 is high level.

[0091] That is, in this example, the first condition is: the output of the co...

example 2

[0094] Suppose the first preset value is 0.7V and the second preset value is 0.5V. If the voltage of D+ and D- is 0.6V, combine image 3 The charging device 100 can be determined:

[0095] The negative terminal voltage U of comparator 101a D+ =0.6V, positive terminal voltage U R1 =0.7V, the V output according to the comparison result out1 is high level.

[0096] The negative terminal voltage U of comparator 101b D+ =0.6V, positive terminal voltage U R2 =0.5V, the V output according to the comparison result out2 is low level.

[0097] The negative terminal voltage U of the comparator 102a D- =0.6V, positive terminal voltage U R3 =0.7V, the V output according to the comparison result out3 is high level.

[0098] The negative terminal voltage U of the comparator 102b D- =0.6V, positive terminal voltage U R4 =0.5V, the V output according to the comparison result out4 is low level.

[0099] That is, in this example, the first condition is: the output of comparator 101...

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Abstract

Embodiments of the present invention provide a charging device and a charging method, which relate to the field of terminal technology, and are used to solve the problem of low charging security of the terminal equipment if the terminal equipment does not perform power detection. The charging device includes: a first comparison module, a second comparison module, a control module connected to the first comparison module and the second comparison module, and a charging module connected to the control module; the first comparison module is used to detect charging When the device is connected to the device to be charged, compare the first data voltage value with the target preset value, and output the first level set according to the comparison result; the second comparison module is used to detect that the charging device is connected to the device to be charged, Comparing the second data voltage value with the target preset value, and outputting a second level set according to the comparison result; the control module is used to control the charging module to wait for the target power according to the first level set and the second level set Charging device charging.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of terminals, and in particular, to a charging device and a charging method. Background technique [0002] Usually, before charging, the terminal device first detects the power of the charging device according to the charging protocol 1.2 (battery charge specification 1.2, BC1.2) to obtain the output power of the charging device; charging power to charge the terminal device. For example, a terminal device that supports high-power charging can request the charging device to charge with a higher power when connected to a dedicated charger, and can request the charging device to charge with a lower power when connected to a computer USB port. [0003] However, some terminal devices do not perform power detection before charging, for example, some terminal devices do not support BC1.2. Because these terminal devices do not perform power detection on the charging device, the charging devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0036H02J7/007H02J7/00036H02J2207/40H02J2207/30H02J7/00034H02J7/0029H02J7/00304H02J7/0031
Inventor 卢少锋
Owner VIVO MOBILE COMM CO LTD