Low-temperature-drift current source circuit insensitive to power source
A technology of current source and low-temperature drift, which is applied in the field of circuits, can solve problems such as increased circuit complexity, increased risk of abnormal startup, and reduced reliability of current bias circuits, so as to reduce influence, sensitivity, and temperature drift The effect of the coefficient
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] see figure 1 , is a circuit diagram of a low-temperature drift current source circuit that is insensitive to power supply provided in this embodiment.
[0043] The low-temperature drift current source circuit which is insensitive to power supply includes: comprising: a first MOS transistor M1, a second MOS transistor M2, a third MOS transistor M3, a fourth MOS transistor M4, a first resistor R1, a second resistor R2 and The third resistor R3.
[0044] The first MOS transistor M1 is an NMOS transistor, the gate of the first MOS transistor M1 is grounded through the second resistor R2, the source of the first MOS transistor M1 is grounded, and the drain of the first MOS transistor M1 is connected to the power supply VCC through the first resistor R1 .
[0045] The second MOS transistor M2 is an NMOS transistor, the gate of the second MOS transistor M2 is connected to the power supply VCC through the first resistor R1, the source of the second MOS transistor M2 is ground...
Embodiment 2
[0069] see image 3 , is a circuit diagram of another low-temperature drift current source circuit that is insensitive to power supply provided in this embodiment.
[0070] The low-temperature drift current source circuit which is insensitive to power supply includes: the seventh MOS transistor M7, the eighth MOS transistor M8, the ninth MOS transistor M9, the tenth MOS transistor M10, the eighth resistor R8, the ninth resistor R9 and Tenth resistor R10.
[0071] The seventh MOS transistor M7 is a PMOS transistor, the gate of the seventh MOS transistor M7 is connected to the power supply VCC through the ninth resistor R9, the source of the seventh MOS transistor M7 is connected to the power supply VCC, and the drain of the seventh MOS transistor M7 is connected to the eighth resistor R8 is grounded.
[0072] The eighth MOS transistor M8 is a PMOS transistor, the gate of the eighth MOS transistor M8 is grounded through the eighth resistor R8, the source of the eighth MOS tran...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com