CN2831623Y

CN2831623Y - Power source control circuit of multi-way optical receiving/transmitting modular

Info

Publication number: CN2831623Y
Application number: CNU2005200575749U
Authority: CN
Inventors: 夏京盛; 任礼霞; 夏哲; 石章如
Original assignee: FEITONG PHOTOELECTRONIC TECHNOLOGY Co Ltd SHENZHEN CITY
Current assignee: FEITONG PHOTOELECTRONIC TECHNOLOGY Co Ltd SHENZHEN CITY
Priority date: 2005-04-20
Filing date: 2005-04-20
Publication date: 2006-10-25
Anticipated expiration: 2015-04-20

Abstract

The utility model relates to a power source control circuit of a multi-way optical receiving/transmitting module, which is composed of an or gate, a transistor, an NAND gate, field effect tubes and a resistor, wherein a control signal is connected to the input end of the or gate and is divided into two paths after outputted from the output end of the or gate: one path is connected with the drain electrode of one of the field effect tubes, and the source electrode of the field effect tube is connected to the power input end of the multi-way optical receiving/transmitting module; the other path is connected with the base electrode of the transistor, the collecting electrode of the transistor is connected with the input end of the NAND gate and the output end of the NAND gate is connected with the drain electrode of the other field effect tube. The power source control circuit of a multi-way optical receiving/transmitting module of the utility model has the advantages of simple design and convenient control, is suitable for the progressive requirements of miniaturization direction in the existing optical receiving/transmitting modular, and can well solve the problem that the optical receiving/transmitting module has oversize power consumption when communicated with exterior.

Description

A kind of multichannel optical transceiver module power control circuit

Technical field

The utility model relates to electronic circuit field, especially about the power control circuit of optical transceiver module in the optical fiber communication.

Background technology

In recent years, along with developing rapidly of Fibre Optical Communication Technology, the manufacturing technology of indispensable element in the optical fiber telecommunications system---optical transceiver module is also constantly ripe, people are also more and more higher to the requirement of optical transceiver module, particularly when optical transceiver module and outside have communication to be connected, people wish to reduce as much as possible the power consumption of optical transceiver module, and the design for power control circuit in the optical transceiver module has just proposed higher requirement like this.

Power control circuit is used for controlling optical transceiver module need keep the single-chip microcomputer that is connected and the break-make of the remainder element circuitry the EEPROM except that with external communication the time, reaches by the break-make of controlling this part element circuitry and reduces the excessive purpose of optical transceiver module power consumption.Problem is, along with optical transceiver module constantly develops towards miniaturization, microminiaturized direction, it is more and more littler that its inside is left the space of circuit design for, but the design more complicated of optical transceiver module power control circuit in the prior art, and its circuit element that adopts is more, so bigger problem and the optical transceiver module of its space occupancy produced contradiction towards the miniaturization development.The miniaturization of optical transceiver module is used to people and is brought great convenience, but has limited the wherein design of power control circuit, the excessive problem of power consumption in the time of therefore can't solving optical transceiver module with outside keeping in communication.

The utility model content

The utility model provides a kind of multichannel optical transceiver module power control circuit, thereby reaches the excessive purpose of power consumption when reducing optical transceiver module with outside keeping in communication.

The implementation of technical solutions of the utility model is as follows: this multichannel optical transceiver module power control circuit by one or door, a transistor, a NAND gate, two field effect transistor and resistance constitute, wherein, one control signal is connected on input described or door, and after its output output, be divided into two path control signal, one tunnel control signal is connected on the wherein drain electrode of a field effect transistor, the source electrode of this field effect transistor inserts optical transceiver module, is the power input of optical transceiver module; Another road control signal is connected on described transistorized base stage, and its collector electrode is connected with the input of described NAND gate, and the output of this NAND gate is connected with the drain electrode of an other field effect transistor.

The utility model multichannel optical transceiver module power control circuit simplicity of design, control is convenient, the circuit element quantity that it adopts is few, space occupancy is low, can adapt to the demand of current optical transceiver module towards the miniaturization development, promptly can satisfy the optical transceiver module miniaturization to the convenience of bringing in people's use, the excessive problem of power consumption in the time of optical transceiver module and external communication can being solved preferably again simultaneously.

Description of drawings

Fig. 1 is the utility model multichannel optical transceiver module power control circuit first embodiment schematic diagram.

Fig. 2 is the utility model multichannel optical transceiver module power control circuit second embodiment schematic diagram.

Fig. 3 is the utility model multichannel optical transceiver module power control circuit the 3rd embodiment schematic diagram.

Embodiment

Below in conjunction with Figure of description the utility model multichannel optical transceiver module power control circuit is described.

Seeing also Fig. 1, is the utility model multichannel optical transceiver module power control circuit first embodiment schematic diagram.In this embodiment, described multichannel optical transceiver module power control circuit by one or door OR, a NPN transistor, a NAND gate NAND, two P-channel enhancement type field effect transistor MOSFET1, MOSFET2 and resistance constitute.Wherein, annexation between the described element is as follows: a termination one external power source VCC3 of resistance R 41, another termination one control signal CONTROL, this control signal CONTROL from or the input input of door OR, and after the output of its output, be divided into two-way and transmit, wherein one road signal is connected to the drain electrode of field effect transistor MOSFET1, and the source electrode of this field effect transistor MOSFET1 inserts optical transceiver module, is the power input of optical transceiver module; Another road signal inserts the base stage of above-mentioned NPN transistor after resistance R 17, the input of its collector electrode and described NAND gate NAND joins, the output of this NAND gate NAND is connected on the drain electrode of field effect transistor MOSFET2, the source electrode of this field effect transistor MOSFET2 inserts another optical transceiver module, is the power input of another optical transceiver module.

Said external control signal CONTROL has low level and unsettled (high level) two states, controls the break-make of optical transceiver module inside partial circuit except that single-chip microcomputer and EEPROM by the difference of its state.This control signal CONTROL is from the input input of above-mentioned or door OR, from or the output output of door after be divided into the two-way transmission, wherein one the road insert field effect transistor MOSFET1, when control signal CONTROL is low level, or door OR is output as low level, this moment, field effect transistor MOSFET1 opened, and external power source can enter optical transceiver module; When control signal CONTROL is unsettled (control signal CONTROL is high level state), under the effect of described pull-up resistor R41, or door OR output is output as high level, field effect transistor MOSFET1 ends, external power source can not enter optical transceiver module, and just have only single-chip microcomputer or EEPROM and outside to keep in communication in optical transceiver module inside this moment.Above-mentioned NPN transistor be used for from or door OR output after another road control signal CONTROL carry out paraphase, insert another optical transceiver module through the control signal CONTROL after the paraphase through described NAND gate NAND and field effect transistor MOSFET2, thereby can control the break-make of another optical transceiver module inside element circuitry except that single-chip microcomputer and EEPROM.Under the effect of circuit shown in Figure 1, can control the on/off of different optical transceiver modules simultaneously with a control signal CONTROL.

See also Fig. 2, Fig. 2 is the utility model multichannel optical transceiver module power control circuit second embodiment schematic diagram, in this embodiment, adopt the NPN transistor among the NAND gate NAND1 replacement embodiment, all the other elements and corresponding annexation do not change, and the circuit function among function that its circuit plays and the embodiment 1 is identical.

See also Fig. 3, it is the utility model multichannel optical transceiver module power control circuit the 3rd embodiment schematic diagram, in this embodiment, adopt NAND gate NAND1 and NAND2 among not gate NOT1 and the NOT2 replacement embodiment 2, keep resistance R 41, all the other resistance are cancelled, and this circuit can be realized the function of circuit among the embodiment 1,2 equally.

Element in 3 specific embodiments of the utility model multichannel optical transceiver module power control circuit and between annexation, all can take multiple different element and annexation to substitute.Therefore, the utility model multichannel optical transceiver module power control circuit is not subjected to the restriction of 3 embodiment in this specification.

Claims

1. multichannel optical transceiver module power control circuit, it is characterized in that: this multichannel optical transceiver module power control circuit by one or door, a transistor, a NAND gate, two field effect transistor and many resistance constitute, wherein, one control signal is connected on input described or door, and after its output output, be divided into two-way, one the tunnel is connected on the described wherein drain electrode of a field effect transistor, and the source electrode of this field effect transistor inserts optical transceiver module, is the power input of optical transceiver module; Another road signal is connected on described transistorized base stage, and its collector electrode is connected with the input of described NAND gate, and the output of this NAND gate is connected with the drain electrode of an other field effect transistor.

2. multichannel optical transceiver module power control circuit as claimed in claim 1, it is characterized in that: described transistor is a NPN transistor.

3. multichannel optical transceiver module power control circuit as claimed in claim 1 is characterized in that: described field effect transistor is the P-channel enhancement type field effect transistor.