18272432. SELF-DIAGNOSIS CIRCUIT AND SEMICONDUCTOR DEVICE simplified abstract (Rohm Co., Ltd.)
SELF-DIAGNOSIS CIRCUIT AND SEMICONDUCTOR DEVICE
Organization Name
Inventor(s)
Katsuhiro Oshikawa of Kyoto (JP)
Takayuki Matsuura of Kyoto (JP)
SELF-DIAGNOSIS CIRCUIT AND SEMICONDUCTOR DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 18272432 titled 'SELF-DIAGNOSIS CIRCUIT AND SEMICONDUCTOR DEVICE
Simplified Explanation
The abstract describes a self-diagnosis circuit (BST) designed to diagnose a fault detection circuit, including a first comparator (CMP) fed with a voltage based on a fault sensing target voltage (Vo) and a first reference voltage (Vref). The circuit includes a voltage switch circuit to adjust voltage levels based on a second reference voltage (Vref), a path switch circuit to direct voltage to the comparator, and a control circuit to manage the switches.
- The self-diagnosis circuit (BST) is configured to diagnose faults in a fault detection circuit.
- It includes a first comparator (CMP) that compares voltages based on a fault sensing target voltage (Vo) and a reference voltage (Vref).
- A voltage switch circuit adjusts voltage levels based on a second reference voltage (Vref).
- A path switch circuit directs voltage to the comparator from either the voltage switch circuit or the fault sensing target voltage.
- A control circuit manages the voltage switch circuit and the path switch circuit.
Potential Applications
The technology could be used in various electronic systems where fault detection and self-diagnosis are critical, such as automotive electronics, industrial control systems, and medical devices.
Problems Solved
1. Efficient fault detection: The circuit enables quick and accurate diagnosis of faults in electronic systems. 2. Self-diagnosis capability: The self-diagnosis circuit helps in identifying issues without external intervention, improving system reliability.
Benefits
1. Improved system reliability: By quickly identifying faults, the circuit helps prevent system failures. 2. Cost-effective maintenance: Early fault detection reduces maintenance costs and downtime. 3. Enhanced safety: Ensuring proper functioning of electronic systems leads to increased safety for users.
Potential Commercial Applications
"Self-Diagnosis Circuit for Electronic Systems: Applications and Benefits"
Possible Prior Art
There may be prior art related to fault detection circuits and self-diagnosis systems in electronic devices, but specific examples are not provided in the abstract.
Unanswered Questions
How does the control circuit determine when to switch between the voltage switch circuit and the fault sensing target voltage?
The abstract does not detail the specific criteria or triggers used by the control circuit to decide when to switch between the two voltage sources.
Are there any limitations to the self-diagnosis circuit in terms of the types of faults it can detect or the speed of diagnosis?
The abstract does not mention any potential limitations of the self-diagnosis circuit, such as certain types of faults it may not be able to detect or any delays in the diagnosis process.
Original Abstract Submitted
A self-diagnosis circuit (BST) configured to diagnose a fault detection circuit () including a first comparator (CMP) configured to be fed with a voltage based on a fault sensing target voltage (Vo) and a first reference voltage (Vref) includes a voltage switch circuit () configured to switch the level of a voltage based on a second reference voltage (Vref) and output the resulting voltage, a first path switch circuit () configured to switch between a path through which the voltage output from the voltage switch circuit is fed to the first comparator and a path through which the voltage based on the fault sensing target voltage is fed to the first comparator, and a control circuit () configured to control the voltage switch circuit and the path switch circuit.
