CN212889489U

CN212889489U - Spout a yard device power supply circuit and have its spout a yard device

Info

Publication number: CN212889489U
Application number: CN202021203522.9U
Authority: CN
Inventors: 莫若刚; 唐小辉; 黎广平
Original assignee: Guangdong Qianxing Technology Co ltd
Current assignee: Guangdong Qianxing Technology Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-06
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a spout a yard device power supply circuit to a yard device is spouted to having a yard device power supply circuit spouts is disclosed, wherein spout a yard device power supply circuit and include power input module, step-down voltage stabilizing module, host system and voltage regulation module, power input module respectively with step-down voltage stabilizing module, voltage regulation module connect, host system respectively with step-down voltage stabilizing module voltage regulation module connects, step-down voltage stabilizing module output power VDD, voltage regulation module output power supply. The code spraying device comprises a code spraying device power supply circuit, a code spraying driving circuit and a spray head, wherein a voltage regulating module of the code spraying device power supply circuit is connected with the code spraying driving circuit, and the code spraying driving circuit is also connected with the spray head. Use the utility model discloses can adjust the voltage of supplying with the shower nozzle conveniently.

Description

Spout a yard device power supply circuit and have its spout a yard device

Technical Field

The utility model relates to a spout the technical field of yard device, in particular to spout a yard device supply circuit and have its yard device that spouts.

Background

In the prior art, the inkjet printer is generally matched with different inks by adjusting the power supply voltage of an external supply nozzle, and if the handheld inkjet printer is integrated, the matching of different inks cannot be realized generally due to the fact that the power supply is difficult to replace. Like this, same ink jet numbering machine wants to change the ink and realizes different spouts seal effect, can only realize through taking the change shower nozzle drive power supply, but such mode, complex operation, the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a spout a yard device supply circuit can adjust the voltage of supplying with the shower nozzle conveniently.

The utility model discloses still provide a spout a yard device with above-mentioned yard device supply circuit that spouts.

According to the utility model discloses a spout a yard device supply circuit of first aspect embodiment, include: the power supply comprises a power supply input module, a voltage reduction and stabilization module, a main control module and a voltage regulation module, wherein the power supply input module is respectively connected with the voltage reduction and stabilization module and the voltage regulation module, the main control module is respectively connected with the voltage reduction and stabilization module and the voltage regulation module, the voltage reduction and stabilization module outputs a power supply VDD, and the voltage regulation module outputs a power supply.

According to the utility model discloses spout a yard device supply circuit has following beneficial effect at least: the embodiment of the utility model provides a spout a yard device supply circuit, before power input module exports shower nozzle drive circuit, power input module is connected with voltage regulation module, and host system also is connected with voltage regulation module, adjusts the required voltage of output through voltage regulation module to the regulation of the voltage of shower nozzle is supplied with in the realization, need not to change shower nozzle drive power supply.

According to some embodiments of the present invention, the voltage reduction and stabilization module includes a first chip U1, a first diode 1, a first inductor L1, a third capacitor C3, and a fourth capacitor C4, a port 1 of the first chip U1 is connected to the power input module, a port 2 of the first chip U1 is connected to one end of the first inductor L1, a port 3 of the first chip U1 is connected to the other end of the first inductor L1, and

ports

4, 5, 6, 7, and 8 of the first chip U1 are all grounded; an output end of the first diode D1 is connected with a 2-port of the first chip U1, and an input end of the first diode D1 is grounded; one end of the third capacitor C3 and one end of the fourth capacitor C4 are respectively connected to one end of the first inductor L1, which is far away from the 2-port of the first chip U1, and the other end of the third capacitor C3 and the other end of the fourth capacitor C4 are respectively grounded.

According to some embodiments of the present invention, the voltage regulation module comprises a driving unit, the driving unit comprises a second inductor L2, a second diode D2, a sixth capacitor C6, a MOS transistor Q1, a first resistor R1, a second resistor R2, and a third resistor R3, one end of the second inductor L2 is connected to the power input module, and the other end of the second inductor L2 is connected to an input end of the second diode D2; one end of the sixth capacitor C6 is connected to the output end of the second diode D2, and the other end of the sixth capacitor C6 is grounded; an input end of the MOS transistor Q1 is connected between the second inductor L2 and an input end of the second diode D2, an output end of the MOS transistor Q1 is grounded through the third resistor R3, and a control end of the MOS transistor Q1 is connected to a Vb _ pwm port of the main control module through the first resistor R1; one end of the second resistor R2 is connected with the control end of the MOS transistor Q1, and the other end of the second resistor R2 is grounded.

According to some embodiments of the present invention, the voltage regulation module further comprises an over-current detection unit, the over-current detection unit comprises a first comparator U1 and a seventh capacitor C7, one end of the seventh capacitor C7 is grounded, and the other end of the seventh capacitor C7 is connected to a power supply VDD; the port 1 of the first comparator U1 Is connected with the port Vb _ Is of the master control module, the port 2 of the first comparator U1 Is grounded, the port 3 of the first comparator U1 Is connected with the port Vb _ DA1 of the master control module, the port 4 of the first comparator U1 Is connected with the output end of the MOS transistor Q1, and the port 5 of the first comparator U1 Is connected with the power supply VDD.

According to some embodiments of the present invention, the voltage regulation module further comprises an overvoltage detection unit, the overvoltage detection unit comprises a second comparator U2, an eighth capacitor C8, a fourth resistor R4 and a fifth resistor R5, one end of the eighth capacitor C8 is grounded, and the other end of the eighth capacitor C8 is connected to a power supply VDD; one end of the fourth resistor R4 is connected to the output end of the second diode D2, and the other end is grounded through the resistor R5; a port 1 of a second comparator U2 is connected to a Vb _ back port of the master module, a port 2 of the second comparator U2 is grounded, a port 3 of the second comparator U2 is connected to a Vb _ DA1 port of the master module, a port 4 of the second comparator U2 is connected between the fourth resistor R4 and the fifth resistor R5, and a port 5 of the second comparator U2 is connected to a power supply VDD.

According to some embodiments of the present invention, the power input module comprises a first capacitor C1, a second capacitor C2 and a third capacitor C3, one end of the first capacitor C1, one end of the second capacitor C2 and one end of the third capacitor C3 are respectively connected to an external power input terminal V _ in port, and the other end of the first capacitor C1, the other end of the second capacitor C2 and the other end of the third capacitor C3 are respectively grounded.

According to some embodiments of the invention, the first diode D1 is a freewheeling diode.

According to some embodiments of the invention, the second diode D2 is a freewheeling diode.

According to some embodiments of the present invention, the MOS transistor Q1 is an NMOS transistor.

According to the utility model discloses a yard device is spouted to second aspect embodiment, including foretell yard device supply circuit, spout a yard drive circuit and shower nozzle, spout a yard device supply circuit's voltage regulation module with spout a yard drive circuit, spout a yard drive circuit still with the shower nozzle is connected.

According to the utility model discloses spout a yard device has following beneficial effect at least: the embodiment of the utility model provides a spout a yard device supply circuit, before power input module exports shower nozzle drive circuit, power input module is connected with voltage regulation module, and host system also is connected with voltage regulation module, adjusts the required voltage of output through voltage regulation module to the regulation of the voltage of shower nozzle is supplied with in the realization, need not to change shower nozzle drive power supply.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a code spraying device according to an embodiment of the present invention;

fig. 2 the utility model discloses spout a yard device supply circuit's circuit diagram.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

The utility model provides a first aspect provides a spout a yard device supply circuit, include: the power supply comprises a power supply input module, a voltage reduction and stabilization module, a main control module and a voltage regulation module, wherein the power supply input module is respectively connected with the voltage reduction and stabilization module and the voltage regulation module, the main control module is respectively connected with the voltage reduction and stabilization module and the voltage regulation module, the voltage reduction and stabilization module outputs a power supply VDD, and the voltage regulation module outputs a power supply.

The embodiment of the utility model provides a spout a yard device supply circuit, before power input module exports shower nozzle drive circuit, power input module is connected with voltage regulation module, and host system also is connected with voltage regulation module, adjusts the required voltage of output through voltage regulation module to the regulation of the voltage of shower nozzle is supplied with in the realization, need not to change shower nozzle drive power supply.

In some embodiments of the present invention, the voltage reduction and stabilization module includes a first chip U1, a first diode 1, a first inductor L1, a third capacitor C3, and a fourth capacitor C4, a port 1 of the first chip U1 is connected to the power input module, a port 2 of the first chip U1 is connected to one end of the first inductor L1, a port 3 of the first chip U1 is connected to the other end of the first inductor L1, and

ports

In some embodiments of the present invention, the voltage regulation module includes a driving unit, the driving unit includes a second inductor L2, a second diode D2, a sixth capacitor C6, a MOS transistor Q1, a first resistor R1, a second resistor R2, and a third resistor R3, one end of the second inductor L2 is connected to the power input module, and the other end of the second inductor L2 is connected to an input end of the second diode D2; one end of the sixth capacitor C6 is connected to the output end of the second diode D2, and the other end of the sixth capacitor C6 is grounded; an input end of the MOS transistor Q1 is connected between the second inductor L2 and an input end of the second diode D2, an output end of the MOS transistor Q1 is grounded through the third resistor R3, and a control end of the MOS transistor Q1 is connected to a Vb _ pwm port of the main control module through the first resistor R1; one end of the second resistor R2 is connected with the control end of the MOS transistor Q1, and the other end of the second resistor R2 is grounded.

In some embodiments of the present invention, the voltage regulation module further includes an over-current detection unit, the over-current detection unit includes a first comparator U1 and a seventh capacitor C7, one end of the seventh capacitor C7 is grounded, and the other end of the seventh capacitor C7 is connected to a power supply VDD; the port 1 of the first comparator U1 Is connected with the port Vb _ Is of the master control module, the port 2 of the first comparator U1 Is grounded, the port 3 of the first comparator U1 Is connected with the port Vb _ DA1 of the master control module, the port 4 of the first comparator U1 Is connected with the output end of the MOS transistor Q1, and the port 5 of the first comparator U1 Is connected with the power supply VDD.

In some embodiments of the present invention, the voltage regulation module further includes an overvoltage detection unit, the overvoltage detection unit includes a second comparator U2, an eighth capacitor C8, a fourth resistor R4 and a fifth resistor R5, one end of the eighth capacitor C8 is grounded, and the other end of the eighth capacitor C8 is connected to a power supply VDD; one end of the fourth resistor R4 is connected to the output end of the second diode D2, and the other end is grounded through the resistor R5; a port 1 of a second comparator U2 is connected to a Vb _ back port of the master module, a port 2 of the second comparator U2 is grounded, a port 3 of the second comparator U2 is connected to a Vb _ DA1 port of the master module, a port 4 of the second comparator U2 is connected between the fourth resistor R4 and the fifth resistor R5, and a port 5 of the second comparator U2 is connected to a power supply VDD.

In some embodiments of the present invention, the power input module includes a first capacitor C1, a second capacitor C2 and a third capacitor C3, one end of the first capacitor C1, one end of the second capacitor C2 and one end of the third capacitor C3 are respectively connected to an external power input terminal V _ in port, and the other end of the first capacitor C1, the other end of the second capacitor C2 and the other end of the third capacitor C3 are respectively grounded.

In some embodiments of the present invention, the first diode D1 is a freewheeling diode. The second diode D2 is a freewheeling diode. The MOS transistor Q1 is an NMOS transistor.

The utility model provides a second aspect provides a spout a yard device, including foretell yard device supply circuit, spout a yard drive circuit and shower nozzle, spout a yard device supply circuit's voltage regulating module with spout a yard drive circuit, spout a yard drive circuit still with the shower nozzle is connected. In some embodiments, the code spraying driving circuit is also connected with the main control module.

Specifically, the power input module is inserted into a DC power supply, the voltage reduction and stabilization module works, the voltage stabilization output power supply VDD is stabilized, and the main control module is electrified to work; the utility model discloses step-down voltage stabilizing module adopts DC-DC step-down circuit, can realize wide range voltage input, realizes great current output simultaneously.

After the main control circuit Is powered on to work, a PWM signal, an over-current signal Vb _ DA1 and an over-voltage signal Vb _ DA2 can be generated according to the voltage of matched ink, the PWM signal drives a Vb _ PWM port, the Vb _ PWM port Is connected with the grid electrode of a MOS tube Q1, the MOS tube Q1 realizes switching work according to the frequency of the PWM signal, at the moment, the second inductor L2 and the circuit where the second diode D2 Is located boost the voltage, the over-current signal Vb _ DA1 Is connected with the anode of a first comparator U1 of an over-current detection unit, when the current of a third resistor R3 Is conducted, the anode of a resistor of the third resistor R3 Is connected with the cathode of the over-current detection comparator, the voltage Vs of the cathode of the over-current detection first comparator U1 Is Rs Is, when Vs Is greater than Vb _ DA1, the Vb _ Is at a low level, otherwise, when the main control module detects that the Vb _ Is at a low level, the duty ratio of the PWM signal Is adjusted to a low level, and the duty ratio of Vb _ Is at a high level, if the Vb _ Is always high level, the duty ratio of the PWM signal Is increased; the overvoltage signal Vb _ DA2 is connected with the positive electrode of a second comparator U2 of the overvoltage detection unit, the boosted V _ PRINT is divided by a fourth resistor R4 and a fifth resistor R5 to obtain a voltage Vb, Vb is connected to the negative electrode of the overvoltage detection unit, when Vb is larger than Vb _ DA2, overvoltage is generated, Vb _ back is low level, otherwise, high level is generated, when the main control module detects that Vb _ back is low level, the frequency of the PWM signal is reduced until Vb _ back is high level, and if Vb _ back is always high, the frequency of the PWM signal is increased; therefore, various voltages can be generated by changing the PWM signal, the over-current signal Vb _ DA1 and the over-voltage signal Vb _ DA2 so as to match different inks.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A code spraying device power supply circuit is characterized by comprising: the power supply comprises a power supply input module, a voltage reduction and stabilization module, a main control module and a voltage regulation module, wherein the power supply input module is respectively connected with the voltage reduction and stabilization module and the voltage regulation module, the main control module is respectively connected with the voltage reduction and stabilization module and the voltage regulation module, the voltage reduction and stabilization module outputs a power supply VDD, and the voltage regulation module outputs a power supply.

2. The code spraying device power supply circuit according to claim 1, characterized in that: the buck-boost voltage stabilizing module comprises a first chip U1, a first diode 1, a first inductor L1, a third capacitor C3 and a fourth capacitor C4, wherein a port 1 of the first chip U1 is connected with the power supply input module, a port 2 of the first chip U1 is connected with one end of a first inductor L1, a port 3 of the first chip U1 is connected with the other end of the first inductor L1, and ports 4, 5, 6, 7 and 8 of the first chip U1 are all grounded; an output end of the first diode D1 is connected with a 2-port of the first chip U1, and an input end of the first diode D1 is grounded; one end of the third capacitor C3 and one end of the fourth capacitor C4 are respectively connected to one end of the first inductor L1, which is far away from the 2-port of the first chip U1, and the other end of the third capacitor C3 and the other end of the fourth capacitor C4 are respectively grounded.

3. The code spraying device power supply circuit according to claim 2, characterized in that: the voltage regulation module comprises a driving unit, the driving unit comprises a second inductor L2, a second diode D2, a sixth capacitor C6, a MOS transistor Q1, a first resistor R1, a second resistor R2 and a third resistor R3, one end of the second inductor L2 is connected with the power supply input module, and the other end of the second inductor L2 is connected with an input end of the second diode D2; one end of the sixth capacitor C6 is connected to the output end of the second diode D2, and the other end of the sixth capacitor C6 is grounded; an input end of the MOS transistor Q1 is connected between the second inductor L2 and an input end of the second diode D2, an output end of the MOS transistor Q1 is grounded through the third resistor R3, and a control end of the MOS transistor Q1 is connected to a Vb _ pwm port of the main control module through the first resistor R1; one end of the second resistor R2 is connected with the control end of the MOS transistor Q1, and the other end of the second resistor R2 is grounded.

4. The code spraying device power supply circuit according to claim 3, characterized in that: the voltage regulation module further comprises an overcurrent detection unit, the overcurrent detection unit comprises a first comparator U1 and a seventh capacitor C7, one end of the seventh capacitor C7 is grounded, and the other end of the seventh capacitor C7 is connected with a power supply VDD; the port 1 of the first comparator U1 Is connected with the port Vb _ Is of the master control module, the port 2 of the first comparator U1 Is grounded, the port 3 of the first comparator U1 Is connected with the port Vb _ DA1 of the master control module, the port 4 of the first comparator U1 Is connected with the output end of the MOS transistor Q1, and the port 5 of the first comparator U1 Is connected with the power supply VDD.

5. The code spraying device power supply circuit according to claim 3, characterized in that: the voltage regulation module further comprises an overvoltage detection unit, the overvoltage detection unit comprises a second comparator U2, an eighth capacitor C8, a fourth resistor R4 and a fifth resistor R5, one end of the eighth capacitor C8 is grounded, and the other end of the eighth capacitor C8 is connected with a power supply VDD; one end of the fourth resistor R4 is connected to the output end of the second diode D2, and the other end is grounded through the resistor R5; a port 1 of a second comparator U2 is connected to a Vb _ back port of the master module, a port 2 of the second comparator U2 is grounded, a port 3 of the second comparator U2 is connected to a Vb _ DA1 port of the master module, a port 4 of the second comparator U2 is connected between the fourth resistor R4 and the fifth resistor R5, and a port 5 of the second comparator U2 is connected to a power supply VDD.

6. The code spraying device power supply circuit according to claim 1, characterized in that: the power input module comprises a first capacitor C1, a second capacitor C2 and a third capacitor C3, one end of the first capacitor C1, one end of the second capacitor C2 and one end of the third capacitor C3 are respectively connected with an external power input end V _ in port, and the other end of the first capacitor C1, the other end of the second capacitor C2 and the other end of the third capacitor C3 are respectively grounded.

7. The code spraying device power supply circuit according to claim 2, characterized in that: the first diode D1 is a freewheeling diode.

8. The code spraying device power supply circuit according to claim 3, characterized in that: the second diode D2 is a freewheeling diode.

9. The code spraying device power supply circuit according to claim 3, characterized in that: the MOS transistor Q1 is an NMOS transistor.

10. The utility model provides a spout a yard device which characterized in that: the code spraying device comprises a power supply circuit of the code spraying device, a code spraying driving circuit and a spray head, wherein a voltage regulating module of the power supply circuit of the code spraying device is connected with the code spraying driving circuit, and the code spraying driving circuit is also connected with the spray head.