Video clamping circuit with low power consumption and large signal input range
A technology of signal range and clamping circuit, which is applied in the direction of TV, electrical components, color TV, etc., and can solve the problems of limited duration and small input current of the circuit
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0015] like figure 2 As shown, a transconductance amplifier composed of a pair of PMOS1 and PMOS2 tubes, a current mirror amplifier composed of a PMOS3 tube and a PMOS4 tube, the gate of the PMOS1 is connected to a reference voltage device (Vref), the reference voltage device is connected to the ground, the PMOS1 The drain of NMOS3 is connected to the source of NMOS3, and the drain of NMOS3 is connected to the drain of PMOS4.
[0016] Then, the drain of the transconductance amplifier is connected to the drain of the NMOS1 transistor, the gate of the NMOS1 transistor is connected to the gate of the NMOS2 transistor, and the gate of the NMOS2 transistor is connected to the drain of the NMOS2 transistor. This connection makes the NMOS1 and NMOS2 transistors become Constant current source load, NMOS3 is used as a common gate to match the drains of NMOS1 and NMOS2 tubes to ensure the same current flowing through the two NMOS tubes at the same time. The drain of the NMOS2 transist...
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap