As the screen of the mobile phone grows larger, the performance of the processor becomes stronger and more multi-core is upgraded. In order to ensure the battery life, the battery capacity of the mobile phone also becomes large, which causes the charging time to inevitably become longer. How to shorten the charging time has become a major bottleneck for mobile applications. Successive charging solutions based on different vendors have emerged to improve charging efficiency in a short period of time. Click to learn >> Car multi-function fast charger program , compatible with all Android fast charge mobile phone models.
1. Scheme block diagram
TI solution block diagram
2. Program features
· Less than 10mW no load power capability
· Optically coupled feedback for constant voltage (CV) and primary side regulation (PSR) for constant current (CC)
· ±1% voltage regulation and ±5% current regulation on line and load
· 700V start switch
· 100kHz maximum switching frequency for high power density charger design
· Resonant ring valley switch operation for highest overall efficiency
· Frequency jitter that simplifies electromagnetic interference (EMI) compatibility
· Clamped gate drive output for metal oxide semiconductor field effect transistors (MOSFETs)
· Overvoltage, low line and overcurrent protection
3. The main components of this solution
UCC28740 constant voltage, constant current flyback controller with optocoupler feedback
The UCC28740 isolated flyback power controller uses an optocoupler device to provide a constant voltage (CV) to improve transient response to large load steps. Constant current (CC) regulation is achieved by primary side regulation (PSR) technology. This device processes information from the optically coupled feedback and the auxiliary flyback windings to achieve precise high performance control of the output voltage and current.
UCC28740 application block diagram
Details: UCC28740 constant voltage, constant current flyback controller
UCC24610 secondary side synchronous rectifier controller
UCC24610 application block diagram
Details: UCC24610 secondary side synchronous rectifier controller
4.TI program photo
P04 Series Push Wire Connectors
compact universal lever connector, perfect for tight spaces
transparent housing for visual inspection of connection
reusable
Lever-nuts,Transparent Enclosure Terminal Blocks,wire harness connectors,compact splicing connector,cage clamp connector
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