Taiwan semiconductor manufacturing company, ltd. (20240111323). SYSTEM AND METHOD FOR A LOW VOLTAGE SUPPLY BANDGAP simplified abstract
Contents
- 1 SYSTEM AND METHOD FOR A LOW VOLTAGE SUPPLY BANDGAP
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 SYSTEM AND METHOD FOR A LOW VOLTAGE SUPPLY BANDGAP - 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
SYSTEM AND METHOD FOR A LOW VOLTAGE SUPPLY BANDGAP
Organization Name
taiwan semiconductor manufacturing company, ltd.
Inventor(s)
Shao-Yu Chou of Chu Pei City (TW)
SYSTEM AND METHOD FOR A LOW VOLTAGE SUPPLY BANDGAP - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240111323 titled 'SYSTEM AND METHOD FOR A LOW VOLTAGE SUPPLY BANDGAP
Simplified Explanation
The bandgap reference circuit described in the abstract is a circuit that generates a stable voltage reference regardless of temperature variations. Here is a simplified explanation of the abstract:
- The circuit includes a first current mirror and a first resistor to generate a proportional to absolute temperature (PTAT) voltage.
- It also includes a second current mirror and a bipolar junction transistor (BJT) device to generate a complementary to the absolute temperature (CTAT) voltage.
- The output node of the circuit provides a bandgap voltage that is a weighted sum of the PTAT and CTAT voltages.
- Additional resistors are included in the circuit to help stabilize the output voltage.
Potential Applications
The bandgap reference circuit can be used in various electronic devices where a stable voltage reference is required, such as:
- Voltage regulators
- Analog-to-digital converters
- Sensor interfaces
Problems Solved
The bandgap reference circuit solves the following problems:
- Temperature variations affecting voltage references
- Instability in voltage regulation circuits
Benefits
The benefits of the bandgap reference circuit include:
- Improved accuracy and stability in voltage references
- Reduced sensitivity to temperature changes
- Enhanced performance of electronic devices
Potential Commercial Applications
The bandgap reference circuit can be applied in the following commercial applications:
- Consumer electronics
- Automotive electronics
- Industrial control systems
Possible Prior Art
One possible prior art for bandgap reference circuits is the work of Widlar and Dobkin in the 1970s, who pioneered the development of bandgap voltage references.
Unanswered Questions
How does the circuit compensate for process variations in manufacturing?
The abstract does not mention how the bandgap reference circuit addresses process variations that can affect the performance of the circuit.
What is the power consumption of the circuit?
The abstract does not provide information on the power consumption of the bandgap reference circuit, which is crucial for certain applications where power efficiency is a concern.
Original Abstract Submitted
in some aspects of the present disclosure, a bandgap reference circuit includes a first current mirror and a first resistor coupled to the first current mirror to provide a proportional to absolute temperature (ptat) voltage. the circuit includes a second current mirror and a bipolar junction transistor (bjt) device coupled to the second current mirror to provide a complementary to the absolute temperature (ctat) voltage. the circuit includes an output node to provide a bandgap voltage that is a weighted sum of the ptat voltage and the ctat voltage. the circuit includes a second resistor coupled between the output node and a first node, wherein the first node is coupled between the first resistor and the first current mirror. the circuit includes a third resistor coupled between the output node and a second node, wherein the second node is coupled between the bjt device and the second current mirror.
