Title:
PRECISE LINEAR FEEDBACK AMPLIFICATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2022/155786
Kind Code:
A1
Abstract:
A precise linear feedback amplification circuit, comprising an RCA interface and an XLR interface. The RIGHT end of the RCA interface is connected to a resistor R3 and a port 5 of a switch RY1A by means of a capacitor C3, and the LEFT end of the RCA interface is connected to a resistor R10 and a port 4 of the switch RY1A by means of a capacitor C5. The RIGHT end of the XLR interface is connected to an input end of a chip IC4B, an output end of the chip IC4B is connected to a port 7 of the switch RY1A, and the LEFT end of the XLR interface is connected to an input end of a chip IC4A. According to the precise linear feedback amplification circuit, distortion and noise floor of the entire amplification circuit are reduced, the types and quantity of components used in the amplification circuit are reduced, output power is increased, PCB layout difficulty is reduced, and design efficiency is improved.
Inventors:
LIN MALIAN (CN)
Application Number:
PCT/CN2021/072685
Publication Date:
July 28, 2022
Filing Date:
January 19, 2021
Export Citation:
Assignee:
LIN MALIAN (CN)
International Classes:
H03F1/32
Foreign References:
| CN213717932U | 2021-07-16 | |||
| CN206743528U | 2017-12-12 | |||
| CN103475321A | 2013-12-25 | |||
| CN108134583A | 2018-06-08 | |||
| US20080186097A1 | 2008-08-07 |
Attorney, Agent or Firm:
HEFEI KERONG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
Download PDF: