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

Relay drive and detection circuit for smart energy meter

A smart electric energy meter and drive circuit technology, applied in electromagnetic relays, electromagnetic relay details, relays, etc., can solve problems such as low safety factor and insufficient sensitivity of electric energy meters, to ensure normal operation, avoid signal conflicts, and stabilize good effect

Active Publication Date: 2020-12-22
HENGYE ELECTRONICS JIAXING CITY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a relay drive and detection circuit for smart electric energy meters in order to solve the problems of insufficient sensitivity and low safety factor of current electric energy meters

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
  • Relay drive and detection circuit for smart energy meter
  • Relay drive and detection circuit for smart energy meter
  • Relay drive and detection circuit for smart energy meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The technical solutions of the present invention will be further described and illustrated through specific examples below.

[0025] Relay drive and detection circuit for smart energy meters, including internal relay drive circuit, relay trip alarm drive circuit, external relay drive circuit and relay detection circuit, the internal relay drive circuit, relay trip alarm drive circuit, external relay Both the drive circuit and the relay detection circuit are connected with the MCU data processor.

[0026] like image 3 As shown, the relay detection circuit includes the connection between the cathode of the light-emitting diode in the optocoupler OPT8 and the resistor R71, the external diode D6 between the anode and the cathode of the light-emitting diode in the optocoupler OPT8, the node between the resistor R1 and the resistor R21 and the optocoupler OPT8 The collector of the inner phototransistor is connected, the emitter of the phototransistor in the optocoupler OPT8...

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

A relay driving and detection circuit for an intelligent ammeter comprises an internal relay driving circuit, a relay trip warning driving circuit, an external relay driving circuit and a relay detection circuit, wherein the internal relay driving circuit, the relay trip warning driving circuit, the external relay driving circuit and the relay detection circuit are all connected with an MCU data processor, in the relay detection circuit, a negative electrode of an optocoupler OPT8 internal light-emitting diode is connected with a resistor R71, a diode D6 is externally connected between a positive electrode and the negative electrode of the optocoupler OPT8 internal light-emitting diode, a node between a resistor R1 and a resistor R21 is connected with a collector of an optocoupler OPT8 internal phototransistor, an emitter of the optocoupler OPT8 internal phototransistor is connected with the ground, a resistor R68, a resistor R69, a resistor R70 and the resistor R71 are sequentially connected in series, and the resistors are vertically arranged in a staggered way.

Description

technical field [0001] The invention belongs to the technical field of electronic electric meters, and in particular relates to a relay driving and detection circuit for an intelligent electric energy meter. Background technique [0002] In some specific applications of the electronic device, the output circuit must be completely disconnected from the electronic device based on safety considerations. Relay (English name: relay) is an electrical control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity (excitation quantity) meets the specified requirements. It has an interactive relationship between the control system (also known as the input loop) and the controlled system (also known as the output loop). Usually used in automatic control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a...

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): H01H47/32H01H50/08
CPCH01H47/32H01H50/08
Inventor 胡萌傅亮孙林忠余武军
Owner HENGYE ELECTRONICS JIAXING CITY