18532807. SWITCH DEVICE simplified abstract (Rohm Co., Ltd.)
Contents
- 1 SWITCH DEVICE
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 SWITCH DEVICE - 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 Unanswered Questions
- 1.11 Original Abstract Submitted
SWITCH DEVICE
Organization Name
Inventor(s)
SWITCH DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18532807 titled 'SWITCH DEVICE
Simplified Explanation
The patent application describes a switch device with an overcurrent protection circuit that adjusts the overcurrent limit value based on the power supply voltage to protect against output short circuits.
- The switching element connects/disconnects a current path from a power supply terminal to a ground terminal via a load.
- The overcurrent protection circuit limits output current to be at or below the overcurrent limit value.
- When an output short circuit is detected, the overcurrent limit value is decreased as the power supply voltage increases.
- The overcurrent protection circuit includes a reference current generation portion with a differential amplifier, upper side current generation portion, lower side current generation portion, and difference current generation portion.
Potential Applications
This technology can be applied in various electronic devices such as power supplies, circuit breakers, and electrical switches to protect against overcurrent conditions.
Problems Solved
1. Prevents damage to the switch device and connected components in case of an output short circuit. 2. Ensures stable and safe operation of the device by adjusting the overcurrent limit value based on the power supply voltage.
Benefits
1. Enhanced safety and reliability of electronic devices. 2. Efficient protection against overcurrent conditions. 3. Adaptability to different power supply voltages for optimal performance.
Potential Commercial Applications
"Overcurrent Protection Circuit for Electronic Devices: Enhancing Safety and Reliability"
Possible Prior Art
Prior art may include existing overcurrent protection circuits in electronic devices, but the specific implementation described in the patent application may offer unique features or improvements.
Unanswered Questions
How does the overcurrent protection circuit adjust the overcurrent limit value based on the power supply voltage?
The abstract mentions that the overcurrent limit value is decreased as the power supply voltage increases, but the specific mechanism or algorithm used for this adjustment is not detailed.
What are the specific electronic devices or industries that could benefit most from this technology?
While the potential applications section mentions a few examples, a more in-depth analysis of the target market and industries where this technology could have the most impact would provide valuable insights.
Original Abstract Submitted
An example switch device includes a switching element to connect/disconnect a current path from a power supply terminal to a ground terminal via a load, and an overcurrent protection circuit to limit output current flowing in the switching element to be an overcurrent limit value or less. When an output short circuit of the load is detected, the overcurrent protection circuit decreases the overcurrent limit value to be lower as a power supply voltage is higher. The overcurrent protection circuit includes a reference current generation portion that includes: a differential amplifier portion, an upper side current generation portion arranged to generate a predetermined an upper side current, a lower side current generation portion arranged to generate a lower side current, and a difference current generation portion arranged to output a difference current based on the lower side current and the upper side current, as the reference current.
