Visual laryngoscope turning on-off, plugging charger automatic turning-on and video power supply circuit

A technology of automatic start-up and power supply circuit, which is applied in the field of video laryngoscopes, can solve the problems of no built-in switch system and cost waste, and achieve the effects of simple structure, cost saving and convenient use

Pending Publication Date: 2018-11-02
SHANDONG HANFANG BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, many single-chip microcomputers of video laryngoscopes do not have their ow

Method used

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  • Visual laryngoscope turning on-off, plugging charger automatic turning-on and video power supply circuit
  • Visual laryngoscope turning on-off, plugging charger automatic turning-on and video power supply circuit
  • Visual laryngoscope turning on-off, plugging charger automatic turning-on and video power supply circuit

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Embodiment Construction

[0015] Accompanying drawing is a kind of specific embodiment of the present invention.

[0016] The video laryngoscope switch machine of the present invention, plug in the charger to automatically start up and video power supply circuit, one end of the button switch CN106 is connected to the power supply VSYS, and the other end is connected to the G of the N-channel MOS tube Q603 through the resistor R9042, the voltage regulator diode D104, and the resistor R9031. Terminal S of MOS tube Q603 is grounded, terminal D of MOS tube Q603 is connected to terminal G of P-channel MOS tube Q605 via resistor R9036, and terminal D of MOS tube Q603 is also connected to power supply via resistor R9036, resistor R9032, and resistor R9043; The S terminal of the MOS tube Q605 is connected to the power supply through the resistor R9043, and the D terminal of the MOS tube Q605 is connected to the step-down chip U112; the step-down chip U112 outputs a high level to provide voltage for the system; ...

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PUM

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Abstract

The invention discloses a visual laryngoscope turning on-off, plugging charger automatic turning-on and video power supply circuit. One end of a key switch CN106 is connected with a power source whilethe other end of the same is connected with an end G of an N-channel MOS transistor Q603 through a resistor R9042, a voltage-stabilizing diode D104 and a resistor R9031, an end S of the MOS transistor Q603 is grounded while an end D of the same is connected with an end G of a P-channel MOS transistor Q605 through a resistor R9036 and connected with the power source through a resistor, an end S ofthe MOS transistor Q605 is connected with the power source through a resistor R9043 while an end D of the same is connected with a voltage reduction chip U112, and the voltage reduction chip U112 outputs high level to provide voltage to a system to realize turning-on. The circuit is simple in structure and convenient to use, system turning on-off and maintaining and the problem of automatic turning-on of a charger are realized, the electrifying process with normally running video is ensured, and cost is saved greatly.

Description

technical field [0001] The invention relates to the technical field of video laryngoscopes, in particular to a video laryngoscope switch, an automatic power-on when plugged into a charger, and a video power supply circuit. Background technique [0002] At present, many single-chip microcomputers of video laryngoscopes do not have their own on-off system. If an integrated power management system is used, it will lead to waste of cost. Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a video laryngoscope with simple structure and convenient use, which can be switched on and off, plugged into a charger, automatically powered on, and a video power supply circuit. [0004] The present invention is achieved through the following technical solutions: [0005] The video laryngoscope switch machine of the present invention, automatic start-up and video power supply circuit after inserting a charger are cha...

Claims

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Application Information

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IPC IPC(8): A61B1/267
CPCA61B1/267
Inventor 刘克彬朱坤福
Owner SHANDONG HANFANG BIOTECH CO LTD
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