CN211906428U - Financial peripheral equipment self-starting circuit based on terminal - Google Patents
Financial peripheral equipment self-starting circuit based on terminal Download PDFInfo
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- CN211906428U CN211906428U CN202020202690.XU CN202020202690U CN211906428U CN 211906428 U CN211906428 U CN 211906428U CN 202020202690 U CN202020202690 U CN 202020202690U CN 211906428 U CN211906428 U CN 211906428U
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Abstract
The utility model provides a finance peripheral hardware self-starting circuit based on terminal, include: the communication port is used for being connected with a terminal; the signal input end of the self-starting control unit is connected with the communication port; the power adapter is connected with the power end of the self-starting control unit; the switch end of the financial peripheral equipment is connected with the signal output end of the self-starting control unit; when the communication port transmits a power-on signal of the terminal to the self-starting control unit, the self-starting control unit sends a starting signal to the switch end to start the financial peripheral equipment; when the communication port transmits the power-off signal of the terminal to the self-starting control unit, the self-starting control unit sends a shutdown signal to the switch end to shut down the financial peripheral equipment. The utility model has the advantages that: the utility model discloses a terminal that the communication mouth connects is the computer terminal, and when the computer circular telegram starts, the financial peripheral equipment follows to start, and when the computer cuts off the power supply and closes, the financial peripheral equipment follows to close; the adaptability is strong, and the energy-saving effect is achieved.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a control circuit technical field specifically relates to a finance peripheral hardware self-starting circuit based on terminal.
[ background of the invention ]
At present, a plurality of peripheral equipment are used in the financial industry, the peripheral equipment is powered on and off normally or a starting circuit is built by a logic chip in a mode that an adapter is used for assisting a switch button, and a series of defects exist when power is supplied in the mode. One is as follows: the manual turning-off is forgotten, so that the long-time power supply of the equipment is caused, the service life of the equipment is influenced, meanwhile, unnecessary power consumption of a use unit is increased, and the environment is not protected. The second step is as follows: if each device is independently started and shut down, the operation is troublesome, manual intervention is needed for starting and shutting down the device, the switch has the defects of large loss and short service life, and the operation is troublesome and not intelligent enough. Thirdly, a logic chip is used for building a starting circuit, the circuit is complex, the cost is high, and extra communication instructions need to be issued for starting and shutting down.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a finance peripheral hardware self-starting circuit based on terminal, with communication mouth and terminal connection, thereby realize following the circular telegram outage at terminal and carry out self-starting or close to finance peripheral hardware.
The utility model discloses a realize like this: a terminal-based financial peripheral self-starting circuit, comprising:
the communication port is used for being connected with a terminal;
the signal input end of the self-starting control unit is connected with the communication port;
the power adapter is connected with the power end of the self-starting control unit;
the switch end of the financial peripheral equipment is connected with the signal output end of the self-starting control unit;
when the communication port transmits a power-on signal of the terminal to the self-starting control unit, the self-starting control unit sends a starting signal to the switch end to start the financial peripheral equipment; when the communication port transmits a power-off signal of the terminal to the self-starting control unit, the self-starting control unit sends a shutdown signal to the switch end to shut down the financial peripheral equipment.
Furthermore, the communication port comprises a USB interface, and a + VBUS pin of the USB interface is connected to the input terminal of the self-starting control unit.
Furthermore, the communication port comprises a TTL level serial port, and a TXD pin of the TTL level serial port is connected with the input end of the self-starting control element.
Furthermore, the communication port comprises an RS232 level serial port, and a TXD pin of the RS232 level serial port is connected with the input end of the self-starting control element.
Further, the communication port comprises a parallel port, and the parallel port is connected with the input end of the self-starting control unit.
Further, the power adapter is an AC-DC adapter.
Further, the financial peripheral equipment is a high-speed camera or a scanner or an integrated card reader or an information interaction terminal.
Further, the self-starting control unit includes: the signal input end is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a first input end of a Schottky diode D1, the output end of the Schottky diode D1 is connected with a first input end of an AND gate U, one end of a resistor R2, one end of a capacitor C1 and the gate end of a MOS tube F1, the other end of a resistor R2 and the other end of a capacitor C1 are connected with a grounding end, the second input end of the AND gate U is connected with one end of a resistor R3, a collector end of a triode Q1, one end of a capacitor C2 and one end of a capacitor C3, the other end of the resistor R3 is connected with a first-stage power supply end, the emitter end of a triode Q1, the other end of a capacitor C2 and the other end of a capacitor C3 are connected with grounding ends, a voltage control end is connected with one end of the resistor R4, the other end of the resistor R4 is connected with a base end of a triode Q1, one end of, The grid terminal of a MOS tube F2 is connected with one end of a resistor R5, the other end of a resistor R5 is connected with a second-stage power supply terminal, the source terminal of a MOS tube F1, the other end of a capacitor C4, the other end of a capacitor C5 and the source terminal of a MOS tube F2 are connected with a ground terminal, the drain terminal of the MOS tube F2 is connected with a signal output terminal, the output terminal of an AND gate U is connected with one end of a resistor R6, the AND gate U is also connected with a first-stage power supply terminal and the ground terminal, a resistor R6 is connected with the grid terminal of the MOS tube F3, the source terminal of the MOS tube F3 is connected with the ground terminal, and the drain;
the power adapter is connected with a first-stage power supply end, a voltage control end is further connected with one end of a resistor R14, the other end of the resistor R14 is connected with one end of a capacitor C7, one end of a capacitor C8 and a gate end of a MOS tube F4, the other end of the capacitor C7, the other end of a capacitor C8 and a source end of a MOS tube F4 are all connected with a grounding end, a drain end of a MOS tube F4 is connected with one end of a resistor R15 and one end of a resistor R16, the other end of the resistor R15 is connected with one end of a capacitor C9, a first-stage power supply end, one end of a capacitor C9, one end of a capacitor C11 and a source end of a MOS tube F5, the other end of a capacitor C9 is connected with the grounding end, the other end of a resistor R16 is connected with the other end of a capacitor C10, the other end of a capacitor C11 and a gate end of a MOS tube F5, a drain end of a capacitor C5 is connected with one, The other end of the capacitor C13 and the other end of the resistor R17 are both connected to ground.
Further, the self-starting control unit further comprises: one end of the resistor R7 is connected with the output end of the AND gate U, the other end of the resistor R7 is connected with one end of the capacitor C6 and the base end of the triode Q2, the other end of the capacitor C6 and the emitter end of the triode Q2 are both connected with the grounding end, and the collector end of the triode Q2 is connected with the gate end of the MOS tube F3.
Further, the self-starting control unit further comprises: one end of the resistor R8 is connected with the first input end of the AND gate U, the other end of the resistor R8 is connected with one end of the resistor R9 and the state indicating end, and the other end of the resistor R9 is connected with the grounding end.
Further, the communication port includes a first communication port and a second communication port, the signal input end includes a first signal input end and a second signal input end, the first communication port is connected with the first signal input end, the first signal input end is connected with one end of the resistor R1, the second communication port is connected with the second signal input end, the self-starting control unit further includes: the second signal input end is connected with one end of a resistor R10 and one end of a resistor R11, the other end of a resistor R10 is connected with one end of an ESD protector and a second input end of a Schottky diode D1, the other end of the ESD protector is connected with a ground terminal, the other end of the resistor R11 is connected with one end of a resistor R12, a base terminal of a triode Q3 and a first input end of a Schottky diode D2, a collector terminal of the triode Q3 is connected with one end of a resistor R13 and a second input end of a Schottky diode D2, an output terminal of the Schottky diode D2 is connected with a first input terminal of the AND gate U, an emitter terminal of the triode Q3 is connected with the ground terminal, and the other end of the resistor R12 and the other end of the resistor R13 are both connected with the first-stage power.
The utility model has the advantages that: the utility model discloses a terminal that the communication mouth connects can be computer terminal, thin client, notebook etc. when the computer circular telegram starts, the financial peripheral equipment follows to start, when the computer outage closes, the financial peripheral equipment follows to close; the USB interface, the RS232 level serial port, the TTL level serial port or the parallel port and other communication ports of the computer terminal are fully utilized, the computer is not required to issue a power-on/off instruction, manual intervention is not required for starting and closing the financial peripheral equipment completely, the adaptability is strong, the operation flow is simplified, the situation that the financial peripheral equipment is manually forgotten to be closed is avoided, the service life of the equipment is prolonged, and the energy-saving effect is achieved.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is the utility model discloses a finance peripheral hardware self-starting circuit's based on terminal structure schematic diagram.
Fig. 2 is a schematic structural diagram of a self-starting control unit according to a first embodiment of the present invention.
Fig. 3 is a schematic diagram of a circuit structure of the voltage control terminal, the first power terminal and the second power terminal according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a self-starting control unit according to a second embodiment of the present invention.
[ detailed description ] embodiments
The embodiment of the utility model provides a through providing a finance peripheral hardware self-starting circuit based on terminal, the start of having solved among the prior art finance peripheral hardware is shut down and is needed human intervention's technical problem, has realized that the automatic switching on and shutting down operation that follows the computer starts the technological effect of closing.
The embodiment of the utility model provides an in technical scheme for solving above-mentioned problem, the general thinking is as follows: the communication port collects a power-on signal and a power-off signal of the terminal and sends the power-on signal and the power-off signal to the self-starting control unit, and the self-starting control unit gates the power supply of the financial peripheral equipment according to whether the peripheral interface is connected and whether the terminal is started, so that the financial peripheral equipment is started or closed automatically; the computer is not required to issue a power-on and power-off instruction, and the starting and the closing of the financial peripheral equipment are completely free of manual intervention.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
Referring to fig. 1 and 3, the first embodiment of the financial peripheral self-starting circuit based on the terminal of the present invention is shown. The utility model discloses a: the communication port is used for being connected with a terminal; the terminal can be a computer, a thin client, a notebook computer and the like, when the computer is started, the communication port acquires a power-on signal of the computer, and when the computer is shut down, the communication port acquires a power-off signal of the computer. The signal input end of the self-starting control unit is connected with the communication port; the power adapter is connected with the power end of the self-starting control unit; the power adapter converts the external voltage into an appropriate voltage to supply to the self-starting control unit. The switch end of the financial peripheral equipment is connected with the signal output end of the self-starting control unit; when the communication port transmits a power-on signal of the terminal to the self-starting control unit, the self-starting control unit sends a starting signal to the switch end to start the financial peripheral equipment; when the communication port transmits a power-off signal of the terminal to the self-starting control unit, the self-starting control unit sends a shutdown signal to the switch end to shut down the financial peripheral equipment.
The financial peripheral equipment is a high-speed shooting instrument or a scanner or an integrated card reader or an information interaction terminal, and power lines of the financial peripheral equipment are plugged into an external power socket. The communication port comprises a USB interface, and a + VBUS pin of the USB interface is connected with the input end of the self-starting control unit; the + VBUS pin is the power pin for HOST/HUB to power the USB device. The power adapter is an AC-DC adapter, and when the power adapter is used, the self-starting control unit is in a working state. When the computer is started, the USB interface collects a power-on signal output when the computer is started, the power-on signal has high level and is transmitted to the self-starting control unit, the self-starting control unit sends a starting signal to the switch ends of the financial peripheral equipment, and the financial peripheral equipment is started along with the starting signal; when the computer is shut down, the USB interface acquires a power-off signal after the computer is started, the level of the power-off signal is zero, the power-off signal is transmitted to the self-starting control unit, the self-starting control unit transmits a shutdown signal to the switch ends of the financial peripheral equipment, and the financial peripheral equipment is then shut down.
The communication port comprises a TTL level serial port, and a TXD pin of the TTL level serial port is connected with the input end of the self-starting control element. The communication port comprises an RS232 level serial port, and a TXD pin of the RS232 level serial port is connected with the input end of the self-starting control element. Besides the port matched with the USB interface, the computer terminal also has a port matched with the TTL level serial port and the RS232 level serial port. The TXD pin is a pin used for serial communication.
The communication ports include a first communication port and a second communication port, the first communication port is a + VBUS pin of the USB interface, and the second communication port is a TXD pin of a TTL level serial port or an RS232 level serial port, as shown in fig. 2. The signal input end comprises a first signal input end and a second signal input end, the first communication port is connected with the first signal input end, and the second communication port is connected with the second signal input end.
The self-starting control unit includes: the signal input end is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a first input end of a Schottky diode D1, the output end of the Schottky diode D1 is connected with a first input end of an AND gate U, one end of a resistor R2, one end of a capacitor C1 and the gate end of a MOS tube F1, the other end of a resistor R2 and the other end of a capacitor C1 are connected with a grounding end, the second input end of the AND gate U is connected with one end of a resistor R3, a collector end of a triode Q1, one end of a capacitor C2 and one end of a capacitor C3, the other end of the resistor R3 is connected with a first-stage power supply end, the emitter end of a triode Q1, the other end of a capacitor C2 and the other end of a capacitor C3 are connected with grounding ends, a voltage control end is connected with one end of the resistor R4, the other end of the resistor R4 is connected with a base end of a triode Q1, one end of, The grid terminal of a MOS tube F2 is connected with one end of a resistor R5, the other end of a resistor R5 is connected with a second-stage power supply terminal, the source terminal of a MOS tube F1, the other end of a capacitor C4, the other end of a capacitor C5 and the source terminal of a MOS tube F2 are connected with a ground terminal, the drain terminal of the MOS tube F2 is connected with a signal output terminal, the output terminal of an AND gate U is connected with one end of a resistor R6, the AND gate U is also connected with a first-stage power supply terminal and the ground terminal, a resistor R6 is connected with the grid terminal of the MOS tube F3, the source terminal of the MOS tube F3 is connected with the ground terminal, and the drain;
the power adapter is connected with a first-stage power supply end, a voltage control end is further connected with one end of a resistor R14, the other end of the resistor R14 is connected with one end of a capacitor C7, one end of a capacitor C8 and a gate end of a MOS tube F4, the other end of the capacitor C7, the other end of a capacitor C8 and a source end of a MOS tube F4 are all connected with a grounding end, a drain end of a MOS tube F4 is connected with one end of a resistor R15 and one end of a resistor R16, the other end of the resistor R15 is connected with one end of a capacitor C9, a first-stage power supply end, one end of a capacitor C9, one end of a capacitor C11 and a source end of a MOS tube F5, the other end of a capacitor C9 is connected with the grounding end, the other end of a resistor R16 is connected with the other end of a capacitor C10, the other end of a capacitor C11 and a gate end of a MOS tube F5, a drain end of a capacitor C5 is connected with one, The other end of the capacitor C13 and the other end of the resistor R17 are both connected to ground.
Wherein, the signal output terminal is PWRON in fig. 2, and the voltage control terminal is VCC _ IO in fig. 2; the first stage power supply terminal is + V5S in fig. 2, and the second stage power supply terminal is + V5 in fig. 2. After the financial peripheral equipment is powered on, the voltage control terminal VCC _ IO can generate voltage, and after the financial peripheral equipment is powered off, the voltage control terminal VCC _ IO can not output voltage. The power adapter supplies power to the self-starting control unit. When the computer terminal is started and the signal input end is at a high level, the first input end and the second input end of the AND gate U are both at a high level, the output end of the AND gate U is at a high level, the MOS tube F3 is conducted, and the signal output end PWRON outputs a low level, the switch end of the financial peripheral equipment is connected to the low level signal of the signal output end PWRON and then starts to be powered on, then the voltage control end VCC _ IO has voltage after detecting that the financial peripheral equipment is powered on, so that the triode Q1 is conducted, the second input end of the AND gate U is changed into a low level, the output end of the AND gate U outputs a low level, and the MOS tube F3 is not conducted; the voltage control terminal VCC _ IO also outputs voltage to the resistor R14, so that the MOS transistor F4 is turned on, the MOS transistor F5 is turned on, and the second power supply terminal + V5 has voltage, because the gate terminal of the MOS transistor F1 has high level at this time, the MOS transistor F1 is turned on, the gate terminal level of the MOS transistor F2 is zero, the MOS transistor F2 is not turned on, and then the PWRON output becomes high level, so that the PWRON is not always in a low level state; one jump of the PWRON level triggers the startup of the financial peripheral device. That is, in the first embodiment, when the switch end of the fused peripheral device receives the level signal of the signal output end PWRON and the level signal is high level and low level, the financial peripheral device is powered on, and when the level signal of the signal output end PWRON changes from low level to high level, the financial peripheral device is powered on.
When the computer terminal is turned off and the signal input end is at a low level, the grid end of the MOS tube F1 is at a continuous low level to make the MOS tube F1 not be conducted, and then the voltage of the second diode power supply end acts on the grid end of the MOS tube F2 to make the MOS tube F2 be continuously conducted, the signal output end PWRON connected with the drain end of the MOS tube F2 is changed from a high level to a continuous low level, so that the switch end of the financial peripheral device is turned off under the action of the continuous low level.
The self-starting control unit further comprises: one end of the resistor R8 is connected with the first input end of the AND gate U, the other end of the resistor R8 is connected with one end of the resistor R9 and the state indicating end, and the other end of the resistor R9 is connected with the grounding end. The status indication terminal, i.e. STATE in fig. 2, is used to detect whether the financial peripheral device is inserted.
The self-starting control unit further comprises: the second signal input end is connected with one end of a resistor R10 and one end of a resistor R11, the other end of a resistor R10 is connected with one end of an ESD protector and a second input end of a Schottky diode D1, the other end of the ESD protector is connected with a ground terminal, the other end of the resistor R11 is connected with one end of a resistor R12, a base terminal of a triode Q3 and a first input end of a Schottky diode D2, a collector terminal of the triode Q3 is connected with one end of a resistor R13 and a second input end of a Schottky diode D2, an output terminal of the Schottky diode D2 is connected with a first input terminal of the AND gate U, an emitter terminal of the triode Q3 is connected with the ground terminal, and the other end of the resistor R12 and the other end of the resistor R13 are both connected with the first-stage power.
The first input end of the AND gate U is a high level input as long as one of the second signal input end and the first signal input end receives an effective level signal of the computer terminal.
Because a serial ports TXD pin can not have TTL level and RS232 level simultaneously, consequently under the state of unknown customer serial ports level, the utility model discloses serial ports start level self-identification function has.
When the serial port is at the TTL level, the TXD is at a high level by default when the computer is turned on, the TXD high level acts on the second input terminal of the schottky diode D1, at this time, the schottky diode D1 is turned on, the triode terminal Q3 is in a conduction state due to the voltage action of the first pole power terminal, but the schottky diode D2 has unidirectional conductivity, so that the D2 is not turned on, and the level finally input to the and gate U is at a high level.
When the serial port is at RS232 level, since RS232 level is negative logic level, its default level is-3V to-15V, under this level, the transistor Q3 is not conducted, the second input terminal of the schottky diode D2 is conducted by the voltage action of the first electrode power terminal + V5S connected to the resistor R13, and since the second input terminal of the schottky diode D1 is negative level, the schottky diode D1 is also not conducted according to the unidirectional conductivity of the diode, so that the level finally input to U is high level
The self-starting control unit is a self-starting logic circuit built based on discrete elements such as a triode, a field effect transistor and a diode, does not need logic chips such as an IC, and is low in cost, efficient, convenient, reliable and high in adaptability. The USB interface, the TTL level serial port and the RS232 level serial port are connected with corresponding signal input ends of the self-starting control unit, as long as one of the interfaces is effectively connected, namely the interface is connected to a computer and the computer is in a starting state, the self-starting control unit can enable the financial peripheral equipment to be self-started to carry out normal business work, and when the USB interface, the TTL level serial port and the RS232 level serial port are all powered off, the financial peripheral equipment also realizes synchronous power down.
Referring to fig. 4, the present invention is a financial peripheral self-starting circuit based on a terminal according to a second embodiment.
The self-starting control unit further comprises: one end of the resistor R7 is connected with the output end of the AND gate U, the other end of the resistor R7 is connected with one end of the capacitor C6 and the base end of the triode Q2, the other end of the capacitor C6 and the emitter end of the triode Q2 are both connected with the grounding end, and the collector end of the triode Q2 is connected with the gate end of the MOS tube F3.
The resistor R7 and the capacitor C6 form an RC delay circuit, when the output end of the AND gate U outputs high level, the MOS tube F3 is conducted, the signal output end PWRON connected with the drain end of the MOS tube F3 outputs low level, when the capacitor C6 is charged after t seconds, the base end of the triode Q2 is high level, the triode Q2 is conducted, the gate end of the MOS tube F3 is made low level, the MOS tube F3 is not conducted, and the signal output end PWRON connected with the drain end of the MOS tube F3 outputs high level.
In the second embodiment, when the switch terminal of the financial peripheral device receives the output signal PWRON of the signal output terminal PWRON, which is at the high level, the low level, lasts for t seconds, and then at the high level, the financial peripheral device is powered on and turned on. Please refer to the first embodiment of the present invention for other parts not described.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. A financial peripheral self-starting circuit based on a terminal is characterized by comprising:
the communication port is used for being connected with a terminal;
the signal input end of the self-starting control unit is connected with the communication port;
the power adapter is connected with the power end of the self-starting control unit;
the switch end of the financial peripheral equipment is connected with the signal output end of the self-starting control unit;
when the communication port transmits a power-on signal of the terminal to the self-starting control unit, the self-starting control unit sends a starting signal to the switch end to start the financial peripheral equipment; when the communication port transmits a power-off signal of the terminal to the self-starting control unit, the self-starting control unit sends a shutdown signal to the switch end to shut down the financial peripheral equipment.
2. The terminal-based financial peripheral self-starting circuit as claimed in claim 1, wherein said communication port includes a USB interface, and a + VBUS pin of said USB interface is connected to an input terminal of said self-starting control unit.
3. The terminal-based financial peripheral self-starting circuit as claimed in claim 2, wherein said communication port includes a TTL level serial port, and a TXD pin of said TTL level serial port is connected to an input terminal of said self-starting control element.
4. The terminal-based financial peripheral self-starting circuit as claimed in claim 2, wherein said communication port includes an RS232 level serial port, and a TXD pin of said RS232 level serial port is connected to an input terminal of said self-starting control unit.
5. The terminal-based financial peripheral self-starting circuit as claimed in claim 1, wherein said power adapter is an AC-DC adapter.
6. The terminal-based financial peripheral self-starting circuit as claimed in claim 1, wherein the financial peripheral device is a high-speed camera or a scanner or an integrated card reader or an information interaction terminal.
7. The terminal-based financial peripheral self-starting circuit as claimed in claim 1, wherein said self-starting control unit comprises: the signal input end is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a first input end of a Schottky diode D1, the output end of the Schottky diode D1 is connected with a first input end of an AND gate U, one end of a resistor R2, one end of a capacitor C1 and the gate end of a MOS tube F1, the other end of a resistor R2 and the other end of a capacitor C1 are connected with a grounding end, the second input end of the AND gate U is connected with one end of a resistor R3, a collector end of a triode Q1, one end of a capacitor C2 and one end of a capacitor C3, the other end of the resistor R3 is connected with a first-stage power supply end, the emitter end of a triode Q1, the other end of a capacitor C2 and the other end of a capacitor C3 are connected with grounding ends, a voltage control end is connected with one end of the resistor R4, the other end of the resistor R4 is connected with a base end of a triode Q1, one end of, The grid terminal of a MOS tube F2 is connected with one end of a resistor R5, the other end of a resistor R5 is connected with a second-stage power supply terminal, the source terminal of a MOS tube F1, the other end of a capacitor C4, the other end of a capacitor C5 and the source terminal of a MOS tube F2 are connected with a ground terminal, the drain terminal of the MOS tube F2 is connected with a signal output terminal, the output terminal of an AND gate U is connected with one end of a resistor R6, the AND gate U is also connected with a first-stage power supply terminal and the ground terminal, a resistor R6 is connected with the grid terminal of the MOS tube F3, the source terminal of the MOS tube F3 is connected with the ground terminal, and the drain;
the power adapter is connected with a first-stage power supply end, a voltage control end is further connected with one end of a resistor R14, the other end of the resistor R14 is connected with one end of a capacitor C7, one end of a capacitor C8 and a gate end of a MOS tube F4, the other end of the capacitor C7, the other end of a capacitor C8 and a source end of a MOS tube F4 are all connected with a grounding end, a drain end of a MOS tube F4 is connected with one end of a resistor R15 and one end of a resistor R16, the other end of the resistor R15 is connected with one end of a capacitor C9, a first-stage power supply end, one end of a capacitor C9, one end of a capacitor C11 and a source end of a MOS tube F5, the other end of a capacitor C9 is connected with the grounding end, the other end of a resistor R16 is connected with the other end of a capacitor C10, the other end of a capacitor C11 and a gate end of a MOS tube F5, a drain end of a capacitor C5 is connected with one, The other end of the capacitor C13 and the other end of the resistor R17 are both connected to ground.
8. The terminal-based financial peripheral self-starting circuit as claimed in claim 7, wherein said self-starting control unit further comprises: one end of the resistor R7 is connected with the output end of the AND gate U, the other end of the resistor R7 is connected with one end of the capacitor C6 and the base end of the triode Q2, the other end of the capacitor C6 and the emitter end of the triode Q2 are both connected with the grounding end, and the collector end of the triode Q2 is connected with the gate end of the MOS tube F3.
9. The terminal-based financial peripheral self-starting circuit as claimed in claim 7, wherein said self-starting control unit further comprises: one end of the resistor R8 is connected with the first input end of the AND gate U, the other end of the resistor R8 is connected with one end of the resistor R9 and the state indicating end, and the other end of the resistor R9 is connected with the grounding end.
10. The terminal-based financial peripheral self-starting circuit as claimed in claim 7, wherein said communication port comprises a first communication port and a second communication port, said signal input terminal comprises a first signal input terminal and a second signal input terminal, said first communication port is connected to said first signal input terminal, said first signal input terminal is connected to one end of said resistor R1, said second communication port is connected to said second signal input terminal, said self-starting control unit further comprises: the second signal input end is connected with one end of a resistor R10 and one end of a resistor R11, the other end of a resistor R10 is connected with one end of an ESD protector and a second input end of a Schottky diode D1, the other end of the ESD protector is connected with a ground terminal, the other end of the resistor R11 is connected with one end of a resistor R12, a base terminal of a triode Q3 and a first input end of a Schottky diode D2, a collector terminal of the triode Q3 is connected with one end of a resistor R13 and a second input end of a Schottky diode D2, an output terminal of the Schottky diode D2 is connected with a first input terminal of the AND gate U, an emitter terminal of the triode Q3 is connected with the ground terminal, and the other end of the resistor R12 and the other end of the resistor R13 are both connected with the first-stage power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111192418A (en) * | 2020-02-24 | 2020-05-22 | 福建升腾资讯有限公司 | Financial peripheral equipment self-starting circuit based on terminal |
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