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CN-224233547-U - Power management circuit for internal communication system

CN224233547UCN 224233547 UCN224233547 UCN 224233547UCN-224233547-U

Abstract

The application relates to the technical field of power management, and discloses a power management circuit for an internal communication system. The application constructs a complete internal-pass system power management circuit, the power supply module provides stable power for the first power supply module and the second power supply module, the normal operation of the whole circuit is ensured, the first power supply management unit of the first power supply module and the first power supply monitoring unit work cooperatively, the first power supply monitoring unit monitors two paths of power supplies and generates power supply signals, the first power supply management unit processes the signals, the accurate management of the power supplies including overload protection, short-circuit protection, single-end voltage stabilization and the like is realized, and the second power supply management unit and the second power supply monitoring unit of the second power supply module also monitor and process the other two paths of power supplies effectively, so that four paths of power supplies are managed independently and efficiently, the stable power supply of each channel of the internal-pass system is ensured, the reliability and the stability of the system are improved, and other channels are prevented from being influenced by faults of a certain channel.

Inventors

  • Ye Pingting

Assignees

  • 广州华燎电气科技有限公司

Dates

Publication Date
20260512
Application Date
20250403

Claims (6)

  1. 1. A power management circuit for an internal communication system, comprising a power supply module, a first power supply module and a second power supply module; The power supply module is used for supplying power to the first power supply module and the second power supply module, wherein the power supply of the first power supply module and the power supply of the second power supply module are connected with the power supply module; The first power supply module comprises a first power supply management unit and a first power supply monitoring unit, wherein the first power supply management unit is used for processing a power supply signal of the first power supply monitoring unit, and the first power supply monitoring unit is used for monitoring two paths of power supplies and generating the power supply signal; the second power supply module comprises a second power supply management unit and a second power supply monitoring unit, wherein the second power supply management unit is used for processing a power supply signal of the second power supply monitoring unit, the second power supply monitoring unit is used for monitoring two paths of power supplies and generating the power supply signal, and the second power supply management unit is connected with the second power supply monitoring unit.
  2. 2. The power management circuit for an internal communication system according to claim 1, wherein in the power supply module, pins 1 and 3 of the socket P1 are grounded, pins 2 of the socket P1, DCIN, positive electrode of the capacitor C2, pin 1 of the capacitor C1 are all connected to pin 1 of the resistor R2, pins 2 of the resistor R2 and pin 1 of the capacitor C5 are all connected to pin 1 of the chip U5, pin 3 of the capacitor U5, positive electrode of the capacitor C32, pin 1 of the capacitor C6, pin 1 of the capacitor C111 and positive electrode of the light emitting diode D3 are all connected to +5v, negative electrode of the diode D3 is connected to pin 1 of the resistor R10, negative electrode of the diode C2, pin 2 of the capacitor C1, pin 2 of the capacitor C5, pin 2 and pin 4 of the chip U5, negative electrode of the capacitor C32, pin 2 of the capacitor C6, pin 2 of the capacitor C111 and pin 2 of the resistor R10 are all grounded; The 1 pin of the capacitor C4 is connected with the 1 pin of the resistor R4, and the 2 pin of the capacitor C4 and the 2 pin of the resistor R4 are grounded.
  3. 3. The power management circuit for an internal communication system according to claim 1, wherein in the first power management unit in the first power module, pin 6 of the socket P15 and pin 1 of the resistor R29 are connected to +5v, pin 2 of the resistor R29 and pin 5 of the socket P15 are connected to pin 4 of the chip U1, pin 4 of the socket P15 is connected to pin 12 of the chip U1, pin 3 of the socket P15 is connected to pin 11 of the chip U1, pin 2 of the socket P15 is connected to pin 13 of the chip U1, pin 1 of the socket P15 is grounded, pin 14 of the chip U1 is grounded, pin 1 of the capacitor C11 is grounded, pin 2 of the capacitor C11 and pin 1 of the chip U1 are connected to +5v, the positive electrode of the light emitting diode D7 and the positive electrode of the light emitting diode D6 are connected to +5v, the negative electrode of the light emitting diode D7 and pin 1 of the resistor R35 are connected to pin 2 of the chip U1, the cathode of the light-emitting diode D6 is connected with the 1 pin of the resistor R34, the 2 pin of the resistor R34 is connected with the 3 pin of the chip U1, the 10 pin of the chip U1 is connected with the first power supply monitoring unit, the 9 pin of the chip U1 is connected with the first power supply monitoring unit, the 8 pin of the chip U1 is connected with the 7 pin of the chip U2, the 5 pin of the chip U1 is suspended, the 6 pin of the chip U1 is connected with the 2 pin of the chip U2, the 7 pin of the chip U1 is connected with the 1 pin of the chip U2, the 16 pin of the chip U2 is connected with +5V, the 15 pin of the chip U2 is grounded, the 9 pin of the chip U2 is suspended, the 8 pin of the chip U2 is grounded, the 11 pin, the 12 pin, the 13 pin and the 14 pin of the chip U2 are all connected with the first power supply monitoring unit, the 3 pin of the chip U2 and the 1 pin of the resistor R33 are all connected with the 1 pin of the socket P9, the 2 pin of the socket P9 is grounded, the 4 pin of the chip U2 and the 1 pin of the resistor R32 are all connected with the 3 pin of the socket P9, the 5 feet of the chip U2 and the 1 feet of the resistor R31 are connected with the 4 feet of the socket P9, the 5 feet of the socket P9 are grounded, the 6 feet of the chip U2 and the 1 feet of the resistor R30 are connected, the 6 feet of the socket P9 are suspended, the 2 feet of the resistor R33, the 2 feet of the resistor R32, the 2 feet of the resistor R31 and the 2 feet of the resistor R30 are connected with +5V, and the 10 feet of the chip U2 are suspended.
  4. 4. The power management circuit for an internal communication system according to claim 3, wherein in the first power monitor unit in the first power module, pin 1 of resistor R20 is connected to +5v, pin 2 of resistor R20 and pin 13 of chip U2 are connected to the collector of transistor Q11, the emitter of transistor Q11 is grounded, the base of transistor Q11 is connected to pin 1 of resistor R25, pin 2 of resistor R25 and pin 1 of resistor R26 are connected to the collector of transistor Q2, pin 2 of resistor R26 and pin 2 of resistor R28 are connected to pin 9 of chip U1, pin 1 of resistor R28 and pin 1 of resistor R7 are connected to DCIN, pin 2 of transistor Q2 and pin 2 of resistor R7 are connected to pin 1 of resistor R9, pin 2 of resistor R9 and pin 2 of transistor Q4 are connected to pin 1 of resistor R6, the 2 pin of the resistor R6 is connected with the 2 pin of the resistor R1, the 1 pin of the resistor R1 is connected with DCIN, the 2 pin of the resistor R28, the 2 pin of the resistor R26 and the 2 pin of the capacitor C10 are connected with the base electrode of the triode Q12, the emitter electrode of the triode Q12 is grounded, the 1 pin of the capacitor C10, the collector electrode of the triode Q12 and the 2 pin of the resistor R14 are connected with the base electrode of the triode Q6, the 1 pin of the resistor R14 and the positive electrode of the polar capacitor C8 are connected with the 1 pin of the resistor R12, the negative electrode of the polar capacitor C8 is grounded, the 2 pin of the resistor R12 and the collector electrode of the triode Q6 are connected with DCIN, the emitter electrode of the triode Q6 is connected with the base electrode of the triode Q4, the 1 pin and the 3 pin of the positive electrode of the diode D5 are connected with the emitter electrode of the triode Q4, the 1 pin of the resistor R16 is connected with +5V, the 2 pin of the resistor R16 and the collector electrode of the triode Q8 are connected with the 14 pin of the chip U2, the 2 pin of the triode Q8 is grounded, the base electrode of the triode Q8 and the 1 pin of the resistor R22 are connected with the 1 pin of the resistor R18, the 2 pin of the resistor R22 is grounded, the 2 pin of the resistor R18, the 2 pin of the cathode of the diode D5, the positive electrode of the polar capacitor C12, the 1 pin and the 3 pin of the positive electrode of the diode D2 are connected and are connected with a preset internal communication system, the cathode of the polar capacitor C12 is grounded, and the 2 pin of the positive electrode of the diode D2 is connected with DCIN; in the first power supply monitoring unit in the first power supply module, the 1 pin of the resistor R19 is connected with +5V, the 2 pin of the resistor R19 and the 11 pin of the chip U2 are connected with the collector of the triode Q9, the emitter of the triode Q9 is grounded, the base of the triode Q9 is connected with the 1 pin of the resistor R23, the 2 pin of the resistor R23 and the 1 pin of the resistor R24 are connected with the collector of the triode Q1, the 2 pin of the resistor R24 and the 2 pin of the resistor R27 are connected, the 1 pin of the resistor R27 is connected with the 10 pin of the chip U1, the emitter of the triode Q1 and the 1 pin of the resistor R3 are connected with DCIN, the base of the triode Q1 and the 2 pin of the resistor R3 are connected with the 1 pin of the resistor R8, the 2 pin of the resistor R8 and the collector of the triode Q3 are connected with the 1 pin of the resistor R5, the 2 pin of the resistor R5 and the 2 pin of the resistor R1 are connected with the 2 pin of the resistor R27, the 2 pin of the resistor R24 and the 2 pin of the capacitor C9 are connected with the triode Q10, the emitter of the triode Q10 is grounded, the 1 pin of the capacitor C9, the collector of the triode Q10 and the 2 pin of the resistor R13 are connected with the base of the triode Q5, the 1 pin of the resistor R13 and the positive electrode of the polar capacitor C7 are connected with the 1 pin of the resistor R11, the negative electrode of the polar capacitor C7 is grounded, the 2 pin of the resistor R11 and the collector of the triode Q5 are connected with DCIN, the emitter of the triode Q5 is connected with the base of the triode Q3, the 1 pin and the 3 pin of the positive electrode of the diode D4 are connected with the emitter of the triode Q3, the 1 pin of the resistor R15 is connected with +5V, the 2 pin of the resistor R15 and the collector of the triode Q7 are connected with the 12 pin of the chip U2, the 2 pin of the triode Q7 is grounded, the base of the triode Q7 and the 1 pin of the resistor R21 are connected with the 1 pin of the resistor R17, the 2 pin of the resistor R21 is grounded, the 2 pin of the resistor R17 and the 2 pin of the negative electrode of the diode D4 are connected with the emitter of the triode Q3, the positive electrode of the polar capacitor C3, the 1 pin and the 3 pin of the positive electrode of the diode D1 are connected and are connected with a preset internal communication system, the negative electrode of the polar capacitor C3 is grounded, and the 2 pin of the positive electrode of the diode D1 is connected with DCIN.
  5. 5. The power management circuit for an internal communication system according to claim 1, wherein in the second power management unit, pin 1 of the second power module is connected to pin 1 of the resistor R129, pin 2 of the resistor R129 is connected to pin 4 of the chip U101, pin 4 of the resistor R129 is connected to pin 12 of the chip U101, pin 3 of the resistor P16 is connected to pin 11 of the chip U101, pin 2 of the resistor P16 is connected to pin 13 of the chip U101, pin 1 of the resistor P16 is connected to ground, pin 1 of the capacitor C33 is connected to pin 1 of the chip U101, pin 2 of the capacitor C33 is connected to pin 1 of the chip U101 by +5v, positive electrodes of the light emitting diode D107 are connected to pin 1 of the resistor R135, pin 2 of the resistor R135 is connected to pin 2 of the chip U101, negative electrodes of the light emitting diode D106 are connected to pin 11 of the chip U101, pin 2 of the resistor R134 is connected to pin 13 of the chip U102, and pin 13 of the chip U102 are connected to pin 3 of the chip U101, and pin 102 are connected to pin 3 of the chip U13, and pin 102 of the chip U10 is connected to pin 102, and pin 3 of the chip U13 is connected to pin 102, and pin 102 are connected to pin 3 of the chip U101 are connected to pin 5V, and pin 102 are connected to pin 102, and pin 102.
  6. 6. The power management circuit for an internal communication system as defined in claim 5, wherein, in said second power monitor unit of said second power module, pin 1 of resistor R119 is connected to +5v, pin 2 of resistor R119 is connected to pin 13 of die U102, pin 2 of resistor R119 is connected to the collector of transistor Q109, the emitter of transistor Q109 is grounded, the base of transistor Q109 is connected to pin 1 of resistor R123, pin 2 of resistor R123 is connected to pin 1 of resistor R124, pin 2 of resistor R124 is connected to the collector of transistor Q101, pin 2 of resistor R124 is connected to pin 2 of resistor R127, pin 2 of resistor R127 is connected to pin 10 of die U101, pin 1 of resistor R127 is connected to pin 10 of die U101, pin 2 of resistor Q101 is connected to pin 1 of resistor R108, pin 2 of resistor R108 is connected to pin 1 of resistor Q103, pin 2 of resistor R105 is connected to pin 2 of resistor R105, pin 2 of resistor R2 is connected to pin 2 of resistor R103, pin 2 of resistor R127 is connected to pin 2 of resistor R2 is connected to pin 12 of resistor R2 of resistor R103, pin 2 of resistor R2 is connected to pin 12 of resistor R2 of resistor R115, pin 2 of resistor R2 is connected to the base of resistor R115, and pin 2 of resistor R3 is connected to the base of resistor R115, and pin 1 of resistor R107 is connected to resistor Q115 of resistor R107 of resistor Q107 is connected to resistor Q107, and resistor Q1 is connected to resistor Q115, and pin of resistor Q115 is connected to resistor of resistor Q13 is connected to resistor Q103, the base of resistor Q101 is connected to resistor Q103 is connected to 2, the resistor of resistor is connected to 3, the resistor of resistor is connected to pin 103, the resistor is connected to the pin is connected to the resistor, the pin is connected to the pin 13, the pin is connected to the pin is grounded, the pin is grounded. The 2 pin of the resistor R117 is grounded, the 2 pin of the resistor R121, the 2 pin of the cathode of the diode D14, the positive electrode of the polar capacitor C103, the 1 pin and the 3 pin of the positive electrode of the diode D11 are connected and are connected with a preset internal communication system, the cathode of the polar capacitor C103 is grounded, and the 2 pin of the positive electrode of the diode D11 is connected with DCIN; In the second power supply monitoring unit in the second power supply module, pin 1 of resistor R120 is connected with +5v, pin 2 of resistor R120 and pin 13 of chip U102 are connected with collector of triode Q111, emitter of triode Q111 is grounded, base of triode Q111 is connected with pin 1 of resistor R125, pin 2 of resistor R125 and pin 1 of resistor R126 are connected with collector of triode Q102, pin 2 of resistor R126 and pin 2 of resistor R128 are connected, pin 1 of resistor R128 is connected with pin 10 of chip U101, emitter of triode Q102 and pin 1 of resistor R107 are connected with DCIN, base of triode Q102 and pin 2 of resistor R107 are connected with pin 1 of resistor R109, collector of resistor R109 and pin 1 of triode Q104 are connected with pin 1 of resistor R106, pin 2 of resistor R106 and pin 2 of resistor R1 are connected, pin 2 of resistor R128, pin 2 of resistor R126 and pin 2 of capacitor C110 are connected with triode Q112, the emitter of the triode Q112 is grounded, the 1 pin of the capacitor C110, the collector of the triode Q112 and the 2 pin of the resistor R114 are connected with the base of the triode Q106, the 1 pin of the resistor R114 and the positive electrode of the polar capacitor C108 are connected with the 1 pin of the resistor R112, the negative electrode of the polar capacitor C108 is grounded, the 2 pin of the resistor R112 and the collector of the triode Q106 are connected with DCIN, the emitter of the triode Q106 is connected with the base of the triode Q104, the 1 pin and the 3 pin of the positive electrode of the diode D105 are connected with the emitter of the triode Q104, the 1 pin of the resistor R116 is connected with +5V, the 2 pin of the resistor R116 and the collector of the triode Q108 are connected with the 14 pin of the chip U102, the 2 pin of the triode Q108 is grounded, the base of the resistor Q108 and the 1 pin of the resistor R122 are connected with the 1 pin of the resistor R118, the 2 pin of the resistor R122 is grounded, the 2 pin of the resistor R118 and the 2 pin of the negative electrode of the diode D105 are connected with the emitter of the triode Q104, the positive pole of the polar capacitor C112, the 1 pin and the 3 pin of the positive pole of the diode D102 are connected and are connected with a preset internal communication system, the negative pole of the polar capacitor C112 is grounded, and the 2 pin of the positive pole of the diode D102 is connected with DCIN.

Description

Power management circuit for internal communication system Technical Field The application relates to the technical field of power management, in particular to a power management circuit for an internal communication system. Background In modern communication systems, power management circuitry is a critical part of ensuring stable operation of the system. The internal communication system is widely applied to the fields of communication, industrial control and the like, the basic function of the internal communication system is to realize efficient communication among all internal components, and stable power supply is the basis for realizing the function. The existing power management circuit of the internal communication system has a plurality of problems, and the problems are specifically expressed in: 1. in the aspect of power supply stability, voltage fluctuation cannot be effectively applied to part of circuits, and when an input power supply has small change, larger deviation of output voltage can be generated, so that electronic elements in an internal communication system work abnormally, and communication quality is affected. 2. In terms of protection function, many existing circuits lack perfect overload protection and short-circuit protection mechanisms, and once overload or short-circuit conditions occur, a power supply circuit and even the whole internal communication system are extremely damaged, so that huge economic loss and operation faults are caused. 3. In fault detection and indication, when a certain channel fails, a fault prompt cannot be timely and accurately sent out, so that maintenance personnel cannot find and remove the fault in time, and the reliability and maintenance efficiency of the internal communication system are greatly reduced. In summary, a new management scheme for power management of an internal communication system is needed, so that the effect of improving the power management is achieved, and the performance improvement and the wide application of the internal communication system are supported. Disclosure of utility model The present application is directed to a power management circuit for an internal communication system, so as to solve the technical problems set forth in the background art. In order to achieve the aim, the application discloses a power management circuit for an internal communication system, which comprises a power supply module, a first power supply module and a second power supply module; The power supply module is used for supplying power to the first power supply module and the second power supply module, wherein the power supply of the first power supply module and the power supply of the second power supply module are connected with the power supply module; The first power supply module comprises a first power supply management unit and a first power supply monitoring unit, wherein the first power supply management unit is used for processing a power supply signal of the first power supply monitoring unit, and the first power supply monitoring unit is used for monitoring two paths of power supplies and generating the power supply signal; the second power supply module comprises a second power supply management unit and a second power supply monitoring unit, wherein the second power supply management unit is used for processing a power supply signal of the second power supply monitoring unit, the second power supply monitoring unit is used for monitoring two paths of power supplies and generating the power supply signal, and the second power supply management unit is connected with the second power supply monitoring unit. Preferably, in the power supply module, pin 1 and pin 3 of the socket P1 are all grounded, pin 2 of the socket P1, DCIN, positive electrode of the polar capacitor C2, pin 1 of the capacitor C1 are all connected with pin 1 of the resistor R2, pin 2 of the resistor R2 and pin 1 of the capacitor C5 are all connected with pin 1 of the chip U5, pin 3 of the resistor U5, positive electrode of the polar capacitor C32, pin 1 of the capacitor C6, pin 1 of the capacitor C111 and positive electrode of the light emitting diode D3 are all connected with +5v, negative electrode of the light emitting diode D3 is connected with pin 1 of the resistor R10, negative electrode of the polar diode C2, pin 2 of the capacitor C1, pin 2 of the capacitor C5, pin 2 and pin 4 of the chip U5, pin 2 of the polar capacitor C32, pin 2 of the capacitor C6, pin 2 of the capacitor C111 and pin 2 of the resistor R10 are all grounded; The 1 pin of the capacitor C4 is connected with the 1 pin of the resistor R4, and the 2 pin of the capacitor C4 and the 2 pin of the resistor R4 are grounded. Preferably, in the first power management unit in the first power module, pin 6 of the socket P15 and pin 1 of the resistor R29 are connected to +5v, pin 2 of the resistor R29 and pin 5 of the socket P15 are connected to pin 4 of the chip U1, pin 4 of the socket P15 an