High-precision electromagnet driving circuit

Abstract

The invention provides a high-precision electromagnet driving circuit comprising a main driving circuit, wherein one end of a resistor R1 of the main driving circuit is connected to a first voltage end; the other end of the resistor R1 is connected to the positive input end of an optical coupler U1; the negative input end of the optical coupler U1 is connected to a signal end V1; one end of a resistor R2 is connected to a second voltage end; the other end of the resistor R2 is connected to the positive output end of the optical coupler U1; one end of a resistor R3 is connected to the negative output end of the optical coupler U1; the other end of the resistor R3 is connected to ground; the fourth pin of a chip Q1 is connected to the positive output end of the optical coupler U1; the cathode of a diode D1 is connected to one input end of an electromagnet YA; the anode of the diode D1 is connected to the other input end of the electromagnet YA; and the other input end of the electromagnet YA is connected to ground. The high-precision electromagnet driving circuit controls the on / off state of the electromagnet by photoelectric coupling, the electromagnet is energized to generate a magnetic force in order that an actuation component is pressed against on the side of a glass slide, thereby ensuring the correct position of the glass slide when the glass slide is accurately caught and placed. The high-precision electromagnet driving circuit also prevents the position change of the glass slide caused by adhesion of an information sticker to a U-shaped clamp and further avoids subsequent operation deviation.

Description

technical field [0001] The invention relates to a high-precision electromagnet driving circuit. Background technique [0002] When taking slides from the slide box and placing slides on the platform, the U-shaped clip holding the slides must be opened to facilitate the placement of the slides; when scanning slides, the slides must be on the small platform Clamped by the U-shaped clamp; when the slide is taken on the platform and placed in the slide box, the U-shaped clamp must be opened. The slides produced by the sticky chain of the slides cannot be collected normally, which leads to the phenomenon that the slides cannot be used normally at the customer site. Contents of the invention [0003] The problem to be solved by the present invention is to provide a high-precision electromagnet drive circuit, which uses the principle of photoelectric coupling to control the on-off of the electromagnet. When grabbing and placing the slides, the slides are kept in the correct pos...

AI Technical Summary

Problems solved by technology

The slides produced by the sticky chain of the slides cannot be collected normally, which leads to the phenomenon that the slides cannot be used normally at the customer site

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