Samsung electronics co., ltd. (20240136833). BATTERY CHARGER INTEGRATED CIRCUIT FOR ADAPTIVELY LIMITING OVER-CURRENT, MOBILE DEVICE COMPRISING THE SAME AND OPERATION METHOD THEREOF simplified abstract
Contents
- 1 BATTERY CHARGER INTEGRATED CIRCUIT FOR ADAPTIVELY LIMITING OVER-CURRENT, MOBILE DEVICE COMPRISING THE SAME AND OPERATION METHOD THEREOF
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 BATTERY CHARGER INTEGRATED CIRCUIT FOR ADAPTIVELY LIMITING OVER-CURRENT, MOBILE DEVICE COMPRISING THE SAME AND OPERATION METHOD THEREOF - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Original Abstract Submitted
BATTERY CHARGER INTEGRATED CIRCUIT FOR ADAPTIVELY LIMITING OVER-CURRENT, MOBILE DEVICE COMPRISING THE SAME AND OPERATION METHOD THEREOF
Organization Name
Inventor(s)
Seunghoon Kim of Suwon-si (KR)
BATTERY CHARGER INTEGRATED CIRCUIT FOR ADAPTIVELY LIMITING OVER-CURRENT, MOBILE DEVICE COMPRISING THE SAME AND OPERATION METHOD THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240136833 titled 'BATTERY CHARGER INTEGRATED CIRCUIT FOR ADAPTIVELY LIMITING OVER-CURRENT, MOBILE DEVICE COMPRISING THE SAME AND OPERATION METHOD THEREOF
Simplified Explanation
The circuit described in the patent application is designed to protect against overcurrent in an inductor by detecting when the current reaches a certain level and generating a control current to switch the inductor current based on the detected overcurrent.
- The overcurrent limiting (OCL) detector detects when the inductor current reaches an OCL level and generates an OCL detection voltage.
- The control loop circuit compares a ramp voltage reflecting the inductor current level with an error voltage based on an operating condition that is out of a preset condition to generate a reset voltage.
- The adaptive OCL controller generates an OCL control current by counting pulses of the OCL detection voltage and the reset voltage.
- The oscillator generates an oscillation voltage with a frequency that varies based on the magnitude of the OCL control current.
- The switching transistor switches the inductor current based on the oscillation voltage.
Potential Applications
This technology could be applied in various power electronics systems where overcurrent protection is crucial, such as power supplies, motor drives, and battery management systems.
Problems Solved
This technology solves the problem of protecting inductors from overcurrent, which can lead to damage to the circuit components and potential safety hazards.
Benefits
The benefits of this technology include improved reliability and safety of electronic systems, increased efficiency by preventing damage from overcurrent, and potentially extending the lifespan of the components.
Potential Commercial Applications
Potential commercial applications of this technology include power supply manufacturers, electric vehicle manufacturers, and companies producing industrial motor drives.
Possible Prior Art
One possible prior art for this technology could be similar overcurrent protection circuits used in power electronics systems or motor control applications.
Unanswered Questions
How does the adaptive OCL controller adjust the OCL control current based on the number of pulses detected?
The patent application mentions counting pulses of the OCL detection voltage and reset voltage, but it does not provide detailed information on how this counting process affects the generation of the OCL control current.
What is the specific operating condition that triggers the generation of the error voltage for the control loop circuit?
The patent application mentions that the error voltage is generated based on an operating condition that is out of a preset condition, but it does not specify what this condition is or how it is determined.
Original Abstract Submitted
a circuit includes: an overcurrent limiting (ocl) detector configured to detect whether a level of an inductor current reaches an ocl level and to generate an ocl detection voltage; a control loop circuit configured to generate a reset voltage by comparing a ramp voltage reflecting the level of the inductor current with an error voltage generated based on an operating condition that is out of a preset operating condition; an adaptive ocl controller configured to generate an ocl control current by counting a number of pulses of the ocl detection voltage and a number of pulses of the reset voltage; an oscillator configured to generate an oscillation voltage wherein a frequency of the oscillation voltage varies based on a magnitude of the overcurrent limit control current; and a switching transistor for switching the inductor current based on the oscillation voltage.
