Optical module self-adaptive voltage regulating device

Abstract

The utility model discloses an optical module self-adaptive voltage regulating device which comprises an MCU control module, a DCDC voltage conversion module, a power supply power supply module, an electric chip module and an optical chip module, the power supply power supply module is connected with the MCU control module and the DCDC voltage conversion module, the MCU control module is connected with the DCDC voltage conversion module and the electric chip module, the DCDC voltage conversion module is connected with the electric chip module, the electric chip module is connected with the power supply power supply module, and the optical chip module is connected with the power supply power supply module. The electric chip module is connected with the optical chip module; wherein three load components are additionally arranged in a circuit, connected with the DCDC voltage conversion module, of the MCU module to control the output voltage of the DCDC voltage conversion module, and the MCU control module is matched, so that the circuit is not changed to adapt to the working voltage of a new optical chip under the condition that the optical module is changed and the optical chip is changed. According to the utility model, the MCU control module is matched with the load component, and the power supply circuit is controlled to adapt to the change of the optical chip in the optical module, so that the problem that the power supply circuit is rebuilt due to the change of the working voltage when the core chip is changed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to all the field of boost / buck circuit, especially in the voltage design of optical module. BACKGROUND

[0002] In the boost / buck circuit design, the corresponding resistance and other components are often determined by the required output voltage value, and once the circuit is determined, the output voltage is fixed, when the demand voltage changes, only the corresponding components can be replaced to change the output voltage, which is inconvenient to operate and needs to be redesigned, and the replacement cycle is long. Especially in the use process of optical module, if the electric chip in the optical module is replaced, the corresponding voltage conversion circuit needs to be changed, the output range of the voltage can be adjusted by MCU, if the required voltage changes in the output range, the output voltage can be changed by writing value to MCU, which is simple and convenient to operate, and greatly increases the compatibility of the circuit. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a kind of optical module self-adapting voltage regulating device, including MCU control module, electric chip module, optical chip module, further including DCDC voltage conversion module;

[0004] MCU control module is connected with DCDC voltage conversion module and electric chip module, for regulating and controlling voltage conversion module output voltage, controls the signal communication of electric chip;

[0005] DCDC voltage conversion module is connected with electric chip module, for providing corresponding working voltage for electric chip module;

[0006] Electric chip module is connected with optical chip module, for sending signal to optical chip module;

[0007] Wherein, the circuit that MCU module connects DCDC voltage conversion module specifically includes first resistance, second resistance, third resistance, MCU control module, DCDC voltage conversion module;

[0008] DCDC voltage conversion module includes VCC_IN power supply end, OUT output end, GNG end, FB end;

[0009] VCC_IN power supply end is connected with power supply module as power input end;

[0010] OUT output end and first resistance are connected, first resistance and second resistance are connected in series, and the other end of second resistance is grounded, wherein the connection of OUT output end and first resistance is VCC_OUT end, and supplies power to electric chip module;

[0011] GND end and second resistance are connected, and grounded simultaneously;

[0012] FB terminal accesses between the first resistor and the second resistor, and the third resistor is connected as VCC_SET terminal, wherein the third resistor is connected with the MCU control module.

[0013] Further, the utility model still includes power supply module for MCU control module and DCDC voltage conversion module power supply.

[0014] The utility model has the beneficial effects of:

[0015] The utility model adjusts Vcc_SET value through MCU control module, reduces the input voltage of electric chip module, reduces the working power consumption of optical module when the working power consumption of optical module is high, reduces the heat of optical module, helps reducing energy consumption and operating cost, reduces heat dissipation and improves system reliability and life.

[0016] The utility model adjusts Vcc_SET value through MCU control module under the condition that the circuit board design is not changed, makes Vcc_OUT output meet the voltage demand of different electric chip modules, can widen the selection range of electric chip module, and enhances the compatibility of circuit board to electric chip module. DETAILED DESCRIPTION

[0017] The drawings accompanying the specification provide further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute undue limitation on the utility model.

[0018] Figure 1 It is optical module circuit structure schematic diagram of the utility model;

[0019] Figure 2 It is MCU module and DCDC voltage conversion module circuit principle diagram of the utility model;

[0020] Figure 3 It is optical module structure diagram. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.In the case where there is no conflict, the embodiments in the application and the features in the embodiments can be combined with each other.Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0022] As Figure 1As shown, the adaptive voltage regulation optical module provided by the utility model, specifically includes MCU control module, DCDC voltage conversion module, power supply module, electric chip module, optical chip module;The power supply module is connected with the MCU control module and the DCDC voltage conversion module, and is used for providing working power supply for the MCU control module and the DCDC voltage conversion module;The MCU control module is connected with the DCDC voltage conversion module and the electric chip module, and is used for regulating and controlling the output voltage of the voltage conversion module and controlling the signal communication of the electric chip;The DCDC voltage conversion module is connected with the electric chip module, and is used for providing corresponding working voltage for the electric chip module;The electric chip module is connected with the optical chip module, and is used for sending signals to the optical chip module.

[0023] As Figure 2 As shown, the utility model's MCU module DCDC voltage conversion module's specific circuit principle drawing, circuit specifically includes first resistance, second resistance, third resistance, MCU control module, DCDC voltage conversion module;

[0024] DCDC voltage conversion module includes VCC IN power supply end, OUT output end, GNG end, FB end;

[0025] VCC IN power supply end is connected with power supply module as power input end;

[0026] OUT output end is connected with first resistance, first resistance is connected with second resistance in series, and the other end of second resistance is grounded, wherein the connection place of OUT output end and first resistance is used as VCC OUT end to supply power to electric chip module;

[0027] GND end is connected with second resistance and grounded simultaneously;

[0028] FB end is connected between first resistance and second resistance, and third resistance is connected as VCC SET end, wherein third resistance is connected with MCU control module.

[0029] The working principle of the circuit is as follows: the DCDC voltage conversion module outputs corresponding voltage according to the signal of the MCU control module at any time to provide accurate working voltage for the electric chip, wherein the MCU control module can access and write registers.

[0030] The utility model embodiment provides a kind of optical module adaptive voltage regulation method, and the method of this embodiment is specifically as follows:

[0031] S100, first resistance ①, second resistance ②, third resistance ③ of routine, low cost are selected to build control unit circuit;

[0032] S200, input instruction by MCU control module, accurately regulate and control VCC SET voltage by digital-to-analog conversion.

[0033] S300, according to the voltage calculation formula VCC_OUT=(1 / 2+1 / 3+1)*VFB-(1 / 3)*VCC_SET, the output voltage of the control unit is adjusted to provide accurate power supply voltage for the electric chip module;

[0034] S400, when the key component electric chip in the optical module is replaced, the working voltage of different electric chips is different, and the required working voltage source VCC_OUT changes. Without replacing the circuit board, repeating step S200 can realize the mutual compatibility of different electric chip modules with the same circuit board.

[0035] Taking the application of the circuit in the optical module as an example, the implementation process is briefly described as follows, Figure 3 The structure block diagram of the optical module is shown. The implementation process is as follows:

[0036] (1) Insert the optical module into the test board, and power the optical module through the external power supply;

[0037] (2) Power the MCU control unit through the power supply module of the optical module;

[0038] (3) Configure the register of VCC_SET in the MCU control unit through the monitoring software of the optical module;

[0039] (4) According to the configuration, the VCC_OUT voltage value of the DC-DC control unit can be adjusted to provide the required voltage for the electric chip.

[0040] Implementation scenario one: when it is necessary to reduce the working power consumption of the optical module, the configuration of the MCU can be adjusted to make the voltage provided by the DCDC voltage regulation module be the lower limit value of the working voltage range of the electric chip. Without adjusting the configuration of each component in the circuit board and reconfiguring the circuit, the power supply voltage of the electric chip can be reduced, the working power consumption of the optical module can be reduced, and the reliability of the optical module in the operation system such as switch can be increased;

[0041] Implementation scenario two: if the core component electric chip of the optical module is replaced due to demand, and the working voltage required by the replaced electric chip is different from that of the currently used electric chip, the MCU configuration can be adjusted to make the DCDC voltage regulation module output the working voltage of the replaced electric chip. Without reconfiguring the circuit, the power supply voltage can be adjusted only by using the original component configuration, the working needs of the new electric chip can be met, the working cost of changing the optical module scheme is reduced, and the compatibility of the optical module PCBA design is increased;

[0042] Implementation scenario three: if the components required by the output voltage in the circuit design are scarce and the required supply voltage is accurate, other low-cost conventional components can be used to replace the scarce components, and the MCU control module can be used to configure the VCC_SET value to accurately output the required voltage, thereby reducing the design cost and increasing the compatibility of the designed circuit.

[0043] To sum up, the utility model discloses a MCU control module adjusts Vcc_SET value, reduces the input voltage of electric chip module, and when the working power consumption of optical module is high, the purpose of reducing the working power consumption of optical module is achieved, the heat of optical module is reduced, the energy consumption and operation cost are reduced, the heat dissipation is reduced and the system reliability and life are improved.Compared with the traditional optical module, the utility model discloses a MCU control module adjusts Vcc_SET value without changing the circuit board design, so that Vcc_OUT output meets the voltage demand of different electric chip modules, the selection range of electric chip module can be widened, and the compatibility of the circuit board for electric chip module is enhanced.

[0044] The above only describes the preferred embodiments of the utility model and does not limit the utility model, and any modification, equivalent replacement, improvement, etc.

[0045] In addition, it needs to be explained that if the embodiment of the utility model involves directional indication (such as up, down, left, right, front, back, etc.), the directional indication is only used to explain the relative position relationship, motion condition, etc.

[0046] In addition, if the embodiment of the utility model involves "first", "second" and the like, the "first", "second" and the like are only used for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B simultaneously meet the scheme. In addition, the embodiment of the utility model, "multiple" refers to two or more. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled personnel in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

Claims

1. An optical module adaptive voltage regulating device, comprising an MCU control module, an electric chip module, and an optical chip module, characterized in that, The DCDC voltage conversion module is further included; The MCU control module is connected with the DCDC voltage conversion module and the electric chip module, and is used for regulating and controlling the output voltage of the voltage conversion module and controlling the signal communication of the electric chip; The DCDC voltage conversion module is connected with the electric chip module, and is used for providing corresponding working voltage for the electric chip module; The electric chip module is connected with the optical chip module, and is used for sending signals to the optical chip module; The circuit of the MCU module connected with the DCDC voltage conversion module specifically comprises a first resistor, a second resistor, a third resistor, an MCU control module and a DCDC voltage conversion module. The DCDC voltage conversion module comprises a VCC_IN power supply end, an OUT output end, a GND end and an FB end. The VCC_IN power supply end is connected with the power supply module as a power input end; The OUT output end is connected with the first resistor, the first resistor is connected with the second resistor in series, and the other end of the second resistor is grounded, wherein the connection position of the OUT output end and the first resistor is used as a VCC_OUT end to supply power to the electric chip module; The GND end is connected with the second resistor and grounded at the same time; The FB end is connected between the first resistor and the second resistor, and the third resistor is connected at the same time as a VCC_SET end, wherein the third resistor is connected with the MCU control module.

2. The light module adaptive voltage regulating device of claim 1, wherein, The power supply module is further included for supplying power to the MCU control module and the DCDC voltage conversion module.

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