Power supply soft switching control circuit of commanding machine equipment

Abstract

The utility model relates to the technical field of power supply switch control circuits, and discloses a power supply soft switch control circuit of command machine equipment, a first pin and a second pin of a command machine power supply input interface CON9 are connected with a power supply input end, and a fourth pin and a fifth pin of the command machine power supply input interface CON9 are grounded. A transient suppression diode is connected between a first pin, a second pin, a fourth pin and a fifth pin of the commanding machine power input interface CON9, the first pin and the second pin of the commanding machine power input interface CON9 are connected with a source electrode of an MOS tube Q27 through a recoverable safety device F1 and a rectifier diode D2, and a drain electrode of the MOS tube Q27 is connected with a power output end. A voltage stabilizing diode D10 is connected between the source electrode and the grid electrode of the MOS tube Q27; a third pin and a fourth pin of the self-locking switch CON10 are connected with a grid electrode of the MOS tube Q27 through a resistor R27. The device has the advantages of being long in service life and high in use safety.

Description

Technical Field

[0001] The utility model relates to the technical field of power switch control circuits, in particular to a power soft switch control circuit for a command machine device. Background Art

[0002] The control machine products currently on the market all connect the input and output of the power supply together through hard switching. This can easily cause device damage at high voltages, and over time it can easily oxidize causing poor contact of the switch keys, rendering the machine inoperable. In more serious cases, repeated switching can cause fires, which can cause immeasurable losses. Utility Model Content

[0003] 1. Technical Problems Solved

[0004] The technical problem to be solved by the utility model is that the existing command machine products control the power supply by hard switching, and have poor service life and safety.

[0005] 2. Technical Solution

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a power soft switch control circuit of a command machine device, comprising a command machine power input interface CON9 and a self-locking switch CON10,

[0007] Pins 1 and 2 of the commander power input interface CON9 are connected to the power input end, pins 4 and 5 of the commander power input interface CON9 are grounded, a transient suppression diode is connected between pins 1 and 2 and pins 4 and 5 of the commander power input interface CON9, pins 1 and 2 of the commander power input interface CON9 are connected to the source of the MOS tube Q27 through a recoverable fuse F1 and a rectifier diode D2, the drain of the MOS tube Q27 is connected to the power output end, and a voltage regulator diode D10 is connected between the source and the gate of the MOS tube Q27;

[0008] Pins 3 and 4 of the self-locking switch CON10 are connected to the gate of the MOS tube Q27 through a resistor R27.

[0009] Furthermore, pins 3 and 4 of the self-locking switch CON10 are grounded through an ESD protection diode ZD29.

[0010] Furthermore, pins 1 and 2 of the self-locking switch CON10 are grounded.

[0011] Furthermore, the MOS transistor Q27 is a P-channel MOS transistor.

[0012] Furthermore, a resistor R28 is connected in parallel to the voltage stabilizing diode D10.

[0013] 3. Beneficial Effects

[0014] The advantages of the utility model compared with the prior art are:

[0015] 1. Repeated switching of the power supply will not cause fire;

[0016] 2. When working at high voltage, the voltage regulator diode D10 adjusts the power control circuit to prevent damage to the device;

[0017] 3. Use electronic devices to achieve soft shutdown and improve the problem of poor contact causing the device to stop working. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a circuit schematic diagram of the utility model. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0020] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The utility model will now be further described in conjunction with the accompanying drawings.

[0024] Combined with Figure 1Pins 1 and 2 of the commander power input interface CON9 are connected to the power input end, pins 4 and 5 of the commander power input interface CON9 are grounded, a transient suppression diode is connected between pins 1 and 2 and pins 4 and 5 of the commander power input interface CON9, pins 1 and 2 of the commander power input interface CON9 are connected to the source of the MOS tube Q27 through a recoverable fuse F1 and a rectifier diode D2, the drain of the MOS tube Q27 is connected to the power output end, a voltage regulator diode D10 is connected between the source and the gate of the MOS tube Q27, and a resistor R28 is connected in parallel to the voltage regulator diode D10; pins 3 and 4 of the self-locking switch CON10 are connected to the gate of the MOS tube Q27 through a resistor R27, pins 3 and 4 of the self-locking switch CON10 are grounded through an ESD protection diode ZD29, and pins 1 and 2 of the self-locking switch CON10 are grounded.

[0025] When in use, the power supply voltage is input through the power input interface CON9 of the command machine, surge protection is performed through the transient suppression diode E2, and current limiting protection is performed through the recoverable fuse device F1 (F1 uses a fuse), and rectification is performed through the rectifier diode D2. When the self-locking button of the self-locking switch CON10 is not grounded, the resistor R28 keeps the P-channel MOS tube Q27 non-conductive, and the power supply voltage has no output. The voltage regulator diode D10 protects the P-channel MOS tube Q27 from working at ultra-high voltage, and it can work normally. When the 3rd and 4th pins of the self-locking button of the self-locking switch CON10 are connected to the 1st and 2nd pins, the power supply voltage will output the working voltage normally, allowing the command machine equipment to work normally.

[0026] The utility model and its implementation are described, and such description is not restrictive. The drawings are only one of the implementations of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and implementation example similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A power soft switch control circuit for a command machine device, comprising a command machine power input interface CON9 and a self-locking switch CON10, characterized in that: Pins 1 and 2 of the commander power input interface CON9 are connected to the power input end, pins 4 and 5 of the commander power input interface CON9 are grounded, a transient suppression diode is connected between pins 1 and 2 and pins 4 and 5 of the commander power input interface CON9, pins 1 and 2 of the commander power input interface CON9 are connected to the source of the MOS tube Q27 through a recoverable fuse F1 and a rectifier diode D2, the drain of the MOS tube Q27 is connected to the power output end, and a voltage regulator diode D10 is connected between the source and the gate of the MOS tube Q27; Pins 3 and 4 of the self-locking switch CON10 are connected to the gate of the MOS tube Q27 through a resistor R27.

2. A power soft switch control circuit for a command machine device according to claim 1, characterized in that: Pins 3 and 4 of the self-locking switch CON10 are grounded through an ESD protection diode ZD29.

3. The power soft switch control circuit of a command machine device according to claim 1, characterized in that: Pins 1 and 2 of the self-locking switch CON10 are grounded.

4. The power soft switch control circuit of a command machine device according to claim 1, characterized in that: The MOS tube Q27 is a P-channel MOS tube.

5. The power soft switch control circuit of a command machine device according to claim 1, characterized in that: The voltage stabilizing diode D10 is connected in parallel with a resistor R28 .

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