A Bandgap Reference Voltage Circuit
A technology that refers to voltage and circuit, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of circuit not starting, sensitive to the rate of rise of power supply voltage, difficulty, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0020] See figure 1 The present invention relates to a multi-reference voltage output bandgap circuit. The current source is divided into three paths: the first path is connected to the emitter of the transistor T2 via a resistor R1, the base of T2 is connected to the collector and then grounded; the second path is connected to The emitter of the transistor T1 is connected, and the base of T2 is connected to the collector
[0021] Grounding; the third path is grounded through resistors R4 and R2, where the voltage Vref output point is between resistors R4 and R2; the first path and the second path are also connected to the input end of the operational amplifier OP, and the OP input ends are both The resistor R3 is grounded, and the output terminal voltage is connected to VDD.
Embodiment 2
[0023] See figure 2 The difference between the second embodiment and the first embodiment is that the input terminal of the operational amplifier is grounded through the MOS transistors N1 and N2 after R3, and the control terminal G of the N2 is connected to the third loop.
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