Unlock instant, AI-driven research and patent intelligence for your innovation.

Resistance loop capable of achieving function of loop on-line resistance adjustment

A resistance loop and resistance adjustment technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve problems such as unreliability and increase workload, and achieve the effect of convenient debugging and improving reliability and stability.

Inactive Publication Date: 2015-07-08
HUBEI DONGGUANG ELECTRONICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unreliability of the breakpoint in the subsequent welding process, it also increases the workload

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Resistance loop capable of achieving function of loop on-line resistance adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Such as figure 1 As shown, the present invention includes a resistance loop. The first resistance R1, the second resistance R2, and the third resistance R3 in the resistance loop form a triangular-connected resistance loop, which is characterized in that it also has a resistance adjusting circuit and a resistance adjusting circuit. It is composed of a set of precision power supply Vcc, precision sampling resistor Rsen, precision high input impedance operational amplifier U1, operational amplifier input resistance Ri and current amplifier transistor Q1. The precision high input impedance operational amplifier U1, input resistance Ri and current amplifier transistor Q1 are connected to form In follower mode, the upper end of the precision sampling resistor Rsen is connected to the positive electrode of the precision power supply Vcc, and the lower end is connected to the first end of the first resistor R1 and the first end of the second resistor R2. The collector of the cur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a resistance loop capable of achieving the function of loop on-line resistance adjustment. A precision high-input-impedance operational amplifier (U1), an input resistor (Ri) and a current amplification audion (Q1) are connected to form a follower mode, the upper end of a precision sampling resistor (Rsen) is connected with the positive electrode of a precision power (Vcc), the lower end of the precision sampling resistor (Rsen) is connected with a point A of the resistance loop, the collector electrode of the current amplification audion (Q1) is connected with the positive electrode of the precision power (Vcc), the emitting electrode of the current amplification audion (Q1) is connected with a point B of the resistance loop, and a point C of the resistance loop is connected with the positive electrode of the precision power (Vcc). The resistance loop capable of achieving the function of loop on-line resistance adjustment has the advantages of being convenient to debug in the actual application process, simple to operate and easy to use.

Description

Technical field [0001] The invention specifically relates to a resistance loop capable of realizing the on-line resistance adjustment function of the loop. Background technique [0002] At present, if there is a loop resistance in a traditional thick film circuit, it is usually done by setting a breakpoint, that is, when the layout is set, a breakpoint is intentionally left, the entire resistance loop is disconnected, and then printing and laser trimming are performed. In the subsequent assembly, the break points are connected by soldering or short-circuit wires to form a complete circuit. Because the breakpoint is unreliable in the subsequent welding process, it also increases the workload. Summary of the invention [0003] The purpose of the present invention is to aim at the current traditional thick film circuit if there is a loop resistance, generally by setting a breakpoint, that is, intentionally leaving a breakpoint when laying the plate, breaking the entire resistance l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
Inventor 田振国白华
Owner HUBEI DONGGUANG ELECTRONICS