Samsung electronics co., ltd. (20240356444). BI-DIRECTIONAL CURRENT SENSOR, POWER MANAGEMENT INTEGRATED CIRCUIT AND CURRENT SENSING METHOD THEREOF simplified abstract
BI-DIRECTIONAL CURRENT SENSOR, POWER MANAGEMENT INTEGRATED CIRCUIT AND CURRENT SENSING METHOD THEREOF
Organization Name
Inventor(s)
BI-DIRECTIONAL CURRENT SENSOR, POWER MANAGEMENT INTEGRATED CIRCUIT AND CURRENT SENSING METHOD THEREOF - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240356444 titled 'BI-DIRECTIONAL CURRENT SENSOR, POWER MANAGEMENT INTEGRATED CIRCUIT AND CURRENT SENSING METHOD THEREOF
The abstract describes a bi-directional DC-DC converter with an inductor, two switching transistors, and a bi-directional current sensor.
- The first switching transistor controls the power supply voltage to one end of the inductor.
- The second switching transistor switches between the inductor and ground based on driving signals.
- The bi-directional current sensor detects current flow through the second transistor in boost and buck modes.
- The sensor generates a virtual voltage to copy the bi-directional current flow.
- The converter operates in both boost and buck modes efficiently.
Potential Applications: This technology can be used in renewable energy systems, electric vehicles, and power supplies for various electronic devices.
Problems Solved: The converter efficiently manages bi-directional current flow, improving overall system performance and energy efficiency.
Benefits: Enhanced control of current flow, increased energy efficiency, and improved performance in both boost and buck modes.
Commercial Applications: This technology can be applied in solar inverters, battery charging systems, and electric vehicle power management systems.
Questions about the technology: 1. How does the bi-directional current sensor improve the efficiency of the DC-DC converter? 2. What are the key advantages of using a bi-directional DC-DC converter in renewable energy systems?
Original Abstract Submitted
a bi-directional direct current to direct current (dc-dc) converter includes: an inductor; a first switching transistor configured to switch a power supply voltage to one end of the inductor, in response to a first driving signal; a second switching transistor configured to switch between one end of the inductor and a ground voltage, in response to a second driving signal; and a bi-directional current sensor configured to sense a bi-directional current flowing through the second switching transistor in a boost mode and a buck mode, based on a switching node voltage at a drain of the second switching transistor, wherein the bi-directional current sensor is further configured to generate a virtual voltage of a positive voltage in a negative feedback method regardless of the sign of the switching node voltage to copy the bi-directional current.
