Charging input protection device and charging overvoltage and over-temperature protection method thereof
A technology of input voltage and charging input, which is applied in the field of pet training products, and can solve problems such as damage to the voltage regulator tube, failure of subsequent stage circuit protection, breakdown damage, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0050] Embodiment 1: the concrete structure of the present invention is as follows:
[0051] Please refer to the attached image 3 , a charging input protection device of the present invention, comprising a charger S1, an electronic product S2 that can be plugged with the charger S1 to form a charging state, the circuit board of the electronic product S2 has a charging protection circuit, and the charging protection Circuit includes:
[0052] There is a single-chip microcomputer control unit S6 for judging whether the input voltage is within a preset voltage range, the single-chip microcomputer control unit S6 is connected to the positive input voltage of the charging input port through an input voltage positive pole switch unit S4, and the single-chip microcomputer control unit S6 can control the input voltage. On-off of the positive voltage switch unit S4, the single-chip microcomputer control unit S6 is also connected to the negative input voltage of the charging input por...
Embodiment 2
[0058] Such as Figure 4 As shown, a preferred technical solution of this embodiment: the anode of the input voltage of the charging input port is connected in series with a PMOS transistor Q4, and the anode of the input voltage of the charging input port is connected to the drain D of the PMOS transistor Q4;
[0059] The negative input voltage of the charging input port is connected in series with a PMOS transistor Q5, and the negative input voltage of the charging input port is connected to the drain D of the PMOS transistor Q5;
[0060] A series resistor R53 and a resistor R54 are connected between the drain D of the PMOS transistor Q4 and the drain D of the PMOS transistor Q5, and the circuit node between the resistor R53 and the resistor R54 is connected to the The first AD detection port of the single-chip microcomputer control unit S6;
[0061] The gate G of the PMOS transistor Q4 and the gate G of the PMOS transistor Q5 are respectively electrically connected to the s...
Embodiment 3
[0065] Such as Figure 3-4 As shown, a charging overvoltage and overtemperature protection method, the method is:
[0066] 1. A single-chip microcomputer control unit S6 is installed on the circuit board of the electronic product S2, which is connected to and controlled by a charging management unit S5 and an overvoltage and overtemperature alarm unit S8;
[0067] 2. The input voltage positive pole of the charging input port of the electronic product S2 and the input voltage negative pole of the charging input port are respectively connected with the input voltage positive pole switching unit S4 and the input voltage negative pole switching unit S9, and the single-chip microcomputer control unit S6 controls the input voltage positive pole switching unit On-off of S4 and input voltage negative switch unit S9;
[0068] 3. The input voltage positive pole of the charging input port of the electronic product S2 is connected to the input voltage sampling unit S3, and the sampling v...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com