CN205071012U - Data transceiver and transceiver system - Google Patents

Abstract

The utility model provides a data transceiver, include: pull -up resistance pull -up circuit is including power and pull -up resistance, the control module who still includes data line and pull -up ohmic connection through having parasitic capacitance, control module includes electric capacity charging circuit, the capacitor discharge circuit, inductive current holding circuit, to the ground accentuator, switch matrix and the control unit including a plurality of switches, a plurality of switching system are at electric capacity charging circuit, the capacitor discharge circuit, inductive current holding circuit and to in the ground accentuator, the control unit includes that timing sequencer and data set up the state detector, timing sequencer control switch's break -make, make pull -up resistance pull -up circuit, electric capacity charging circuit, the capacitor discharge circuit, inductive current holding circuit, to ground accentuator break -make. The utility model discloses utilize the inductance to drive the height quick, high -efficiently, drive the data line of low strap pull -up resistance, can practice thrift traditional data transmission's parasitic capacitance drive dissipation power, reduce the energy consumption on the pull -up resistance.

Description

Data collector and transceiver system

Technical field

The utility model relates to data transmit-receive field, especially a kind of data collector and transceiver system.

Background technology

Need to use pull-up resistor in a lot of transfer of data occasion, such as the clock of I2C agreement and data wire all use pull-up resistor.Some single lines are powered and transport data field conjunction for another example, be typically the line traffic control application of earphone microphone interface, hardware also needs pull-up resistor.

In the data collector of traditional band pull-up resistor, utilize pull-up resistor to drive the parasitic capacitance of high data wire, utilize the pipe opened leakage to drive the parasitic capacitance of low data wire.The product of the climbing speed of data and the resistance of pull-up resistor and parasitic capacitance is inversely proportional to thus.So, in order to drive larger parasitic capacitance just to need less pull-up resistor, and less pull-up resistor resistance can consume larger energy when data wire drags down.In addition, by resistance and lower trombone slide high level be driven into data line and be driven into low level, can in the process driving parasitic capacitance, consumed energy.Tentation data logic high value is VH, and parasitic capacitance value is Cp, and the frequency of transmission data is Fd, and the power so consumed in driving process is P=Cp*VH*VH*Fd.

To sum up, due to the existence of pull-up resistor, the speed of transfer of data can be reduced.Meanwhile, system is directly driven into high level by resistance and lower trombone slide to data line and is driven into low level, can in the process driving parasitic capacitance, consumed energy.

Utility model content

The purpose of this utility model is the control method providing a kind of data collector, transceiver system and data collector, send device to solve band pull-up resistor data transmit-receive data hourly velocity is slow, the problem of big energy-consuming sending.And eliminate the correlation of message transmission rate and R, C product.

In order to achieve the above object, the utility model provides a kind of data collector, comprising: pull-up resistor pull-up circuit, comprises power supply and pull-up resistor, and described power supply is connected with one end of pull-up resistor, and described power supply has earth terminal; Also comprise the control module be connected with the pull-up resistor other end by data wire, this data wire has parasitic capacitance, and described control module comprises:

Capacitor charging circuit, comprise the first charging circuit and the second charging circuit, by described first charging circuit or the second charging circuit be parasitic capacitance charging, energy storage device, described inductance and parasitic capacitance is provided with in described first charging circuit, this energy storage device has earth terminal, is provided with described inductance and parasitic capacitance in described second charging circuit;

Capacitor discharging circuit, comprise the first discharge circuit and the second discharge circuit, be parasitic capacitance discharge by described first discharge circuit or the second discharge circuit, be provided with described energy storage device, inductance and parasitic capacitance in described first discharge circuit, in described second discharge circuit, be provided with described inductance and parasitic capacitance;

Inductive current holding circuit, for keeping the electric current in inductance;

Accentuator over the ground, for by described parasitic capacitance ground connection;

Switch arrays, comprise multiple switch, and multiple described switch-linear hybrid is in described first charging circuit, the second charging circuit, the first discharge circuit, the second discharge circuit, inductive current holding circuit and over the ground in accentuator;

Control unit, comprise timing sequencer and the data for detecting described parasitic capacitor voltage set up state detector, described timing sequencer produces based on the level transitional states of the input signal of data collector the break-make controlling described switch, described capacitor charging circuit or capacitor discharging circuit are turned on or off, described timing sequencer also when parasitic capacitance charges to the first voltage of setting by the voltage of described pull-up resistor pull-up circuit maintenance work parasitic capacitance, and make the work of inductive current holding circuit, when the second voltage that parasitic capacitance discharge extremely sets, control switch is to make accentuator work over the ground, and make the work of inductive current holding circuit.

Further, described control unit also comprises the current probe for detecting inductive current, and described current probe is connected with inductance and timing sequencer respectively.

Further, described control module also comprises inductive current supplementary circuitry, and described inductive current supplementary circuitry comprises energy storage device and inductance, and the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance supplemental current.

Further, described control module also comprises the power charging circuit for charging to energy storage device, described power charging circuit comprises power supply and energy storage device, and the switch conduction controlled in power charging circuit by timing sequencer thinks that energy storage device charges.

Further, described control module also comprise for by energy regenerating in inductance to the inductance energy recovery circuit of energy storage device, described inductance energy recovery circuit comprises inductance and energy storage device, by timing sequencer control switch conduction in inductance energy recovery circuit with by energy regenerating in inductance in energy storage device.

Further, described timing sequencer is according to the upper control signal of jumping along producing parasitic capacitance charging in input signal, and described timing sequencer is according to the lower control signal of jumping along producing parasitic capacitance discharge in input signal.

Further, described energy storage device comprises storage capacitor, and described storage capacitor is connected with parasitic capacitance by described switch arrays, inductance, and described storage capacitor has earth terminal.

Further, described timing sequencer, also when parasitic capacitance charges to the first voltage of setting, disconnects all switches between described inductance and parasitic capacitance, by the voltage of the pull-up resistor pull-up circuit maintenance work parasitic capacitance of described data collector.

Further, described switch arrays comprise the first switch, second switch, 3rd switch, 4th switch, 5th switch and the 6th switch, described first charging circuit is provided with the first switch and the 6th switch, described energy storage device is through the first switch, inductance, 6th switch is connected with parasitic capacitance, described first discharge circuit is provided with the 3rd switch and the 5th switch, described energy storage device is also through the 3rd switch, inductance, 5th switch is connected with parasitic capacitance, described inductance has first end and the second end, described second charging circuit is provided with second switch and the 6th switch, the first end of described inductance respectively with the first switch, 5th switch connects, this first end is also through second switch ground connection, described second discharge circuit is provided with the 5th switch and the 4th switch, second end of described inductance respectively with the 3rd switch, 6th switch connects, this second end is also through the 4th switch ground connection.

The utility model additionally provides a kind of control method of data collector, for controlling described data collector, comprising:

Step 1, described control unit also comprise the current probe for detecting inductive current, described current probe is connected with inductance and timing sequencer respectively, described receipt transceiver comprises inductive current supplementary circuitry, described inductive current supplementary circuitry comprises energy storage device and inductance, the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance precharge, and is charged to the first electric current I max;

Step 2, when the described input signal of data collector be upper jumping along time, described timing sequencer control switch array makes capacitor charging circuit work, until parasitic capacitance is charged to the first voltage of setting, data set up state detector measure that in parasitic capacitance, voltage reaches the first voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, makes the work of pull-up resistor pull-up circuit simultaneously;

Step 3, when the described input signal of data collector be lower jumping along time, described timing sequencer control switch array makes capacitor discharging circuit work, until parasitic capacitance is put into the second voltage of setting, data set up state detector measure that in parasitic capacitance, voltage reaches the second voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, makes accentuator work over the ground simultaneously.

Further, data set up state detector detect voltage in parasitic capacitance reach the first voltage of setting time, also control described switch arrays and make power charging circuit work.

Further, in step 2, specifically comprise:

Step 2.1, when the described input signal of data collector be upper jumping along time, described timing sequencer control switch array makes capacitor charging circuit work, until parasitic capacitance is charged to the first voltage of setting;

Step 2.2, be that lower jumping is along front at the described input signal of data collector, inductive current is detected by current probe, if electric current is less than the second electric current I min in inductance, then make the work of inductive current supplementary circuitry with supplementary inductive current by timing sequencer control switch, if before arriving in the lower jumping edge of input signal, electric current in described inductance cannot be supplemented to the first electric current I max, till then the arriving of lower jumping edge being supplemented to always to described inductance, if before arriving in the lower jumping edge of input signal, electric current in described inductance can be charged to the first electric current I max, then electric current in described inductance is charged to Imax, then the work of described inductive current holding circuit is made by described timing sequencer control switch.

Further, in step 3, specifically comprise:

Step 3.1, when the described input signal of data collector be lower jumping along time, described timing sequencer control switch array makes capacitor discharging circuit work, until parasitic capacitance is put into the second voltage of setting;

Step 3.2, the next one of the described input signal of data collector is jumped before arriving, inductive current is detected by current probe, if electric current is less than the second electric current I min in inductance, then make the work of inductive current supplementary circuitry with supplementary inductive current by timing sequencer control switch, if before arriving in the upper jumping edge of input signal, electric current in described inductance cannot be supplemented to the first electric current I max, till then the arriving of upper jumping edge being supplemented to always to described inductance, if before arriving in the upper jumping edge of input signal, electric current in described inductance can be charged to the first electric current I max, then electric current in described inductance is charged to Imax, then the work of described inductive current holding circuit is made by described timing sequencer control switch.

Further, described control module also comprise for by energy regenerating in inductance to the inductance energy recovery circuit of energy storage device, described inductance energy recovery circuit comprises inductance and energy storage device, when circuit is turned off, by timing sequencer control switch conduction in inductance energy recovery circuit with by energy regenerating in inductance in energy storage device.

The utility model additionally provides a kind of transceiver system, comprise described data collector, the quantity of the control module in described transceiver system is at least two, the quantity of described pull-up resistor pull-up circuit is one, in arbitrary described control module the input signal of timing sequencer and data set up state detector output signal can with the output signal of other control modules, input signal swap data.

The utility model additionally provides a kind of data collector, comprising: pull-up resistor pull-up circuit, comprises power supply and pull-up resistor, and described power supply is connected with one end of pull-up resistor, and described power supply has earth terminal; Also comprise the control module be connected with the pull-up resistor other end by data wire, one end is had at least to pass through the first capacity earth arranged in the two ends of this data wire, this data wire has parasitic capacitance, this first electric capacity and be equivalent to second electric capacity with the parasitic capacitance of the first Capacitance parallel connection, described control module comprises:

Capacitor charging circuit, comprise the first charging circuit and the second charging circuit, be the second capacitor charging by described first charging circuit or the second charging circuit, energy storage device, described inductance and the second electric capacity is provided with in described first charging circuit, this energy storage device has earth terminal, is provided with described inductance and the second electric capacity in described second charging circuit;

Capacitor discharging circuit, comprise the first discharge circuit and the second discharge circuit, be the second capacitor discharge by described first discharge circuit or the second discharge circuit, be provided with described energy storage device, inductance and the second electric capacity in described first discharge circuit, in described second discharge circuit, be provided with described inductance and the second electric capacity;

Inductive current holding circuit, for keeping the electric current in inductance;

Accentuator over the ground, for by described second capacity earth;

Switch arrays, comprise multiple switch, and multiple described switch-linear hybrid is in described first charging circuit, the second charging circuit, the first discharge circuit, the second discharge circuit, inductive current holding circuit and over the ground in accentuator;

Control unit, comprise timing sequencer and the data for detecting described second capacitance voltage set up state detector, described timing sequencer produces based on the level transitional states of the input signal of data collector the break-make controlling described switch, described capacitor charging circuit or capacitor discharging circuit are turned on or off, described timing sequencer also maintains the voltage of the second electric capacity by described pull-up resistor pull-up circuit when the first voltage that the second capacitor charging extremely sets, and make the work of inductive current holding circuit, when the second voltage that the second capacitor discharge extremely sets, control switch is to make accentuator work over the ground, and make the work of inductive current holding circuit.

The utility model additionally provides a kind of control method of data collector, comprising:

Step 1, described control unit also comprise the current probe for detecting inductive current, described current probe is connected with inductance and timing sequencer respectively, described receipt transceiver comprises inductive current supplementary circuitry, described inductive current supplementary circuitry comprises energy storage device and inductance, the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance precharge, and is charged to the first electric current I max;

Step 2, when the described input signal of data collector be upper jumping along time, described timing sequencer control switch array makes capacitor charging circuit work, until the second electric capacity is charged to the first voltage of setting, data set up state detector measure that on the second electric capacity, voltage reaches the first voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, makes the work of pull-up resistor pull-up circuit simultaneously;

Step 3, when the described input signal of data collector be lower jumping along time, described timing sequencer control switch array makes capacitor discharging circuit work, until the second electric capacity is put into the second voltage of setting, data set up state detector measure that on the second electric capacity, voltage reaches the second voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, makes accentuator work over the ground simultaneously.

The utility model provides the control method of a kind of data collector, transceiver system and data collector, utilizes inductance to drive height fast and efficiently, drives the data wire of low strap pull-up resistor, and the parasitic capacitance can saving conventional data transmission drives dissipation power.When giving inductance precharge, the speed of LC discharge and recharge is far faster than RC charge/discharge rates, and most of energy shifts between L and C, reduces the time consumed on R, thus reduces energy ezpenditure when driving on R, reaches the object of efficient transfer data.Utilize inductance fast driving parasitic capacitance simultaneously, the strong correlation of transmission rate and pull-up resistor and parasitic capacitance product can be broken up, promote message transmission rate further, reduce the power consumption on pull-up resistor when data wire drags down.

Accompanying drawing explanation

The structural representation of the data collector that Fig. 1 provides for the utility model embodiment one;

The structural representation of the switch arrays that Fig. 2 provides for the utility model embodiment one;

The transceiver system that Fig. 3 provides for the utility model embodiment one structural representation.

Embodiment

Below in conjunction with schematic diagram, embodiment of the present utility model is described in more detail.According to following description and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.

Embodiment one

As shown in Figure 1, the utility model embodiment one provides a kind of data collector, the input signal of this data collector is DTx, also input data signal namely to be sent, the output signal of this data collector is DRx, also namely receiving data-signal is DRx, and in addition, the drive singal that this data collector exports is D.

In the present embodiment, described data collector comprises: pull-up resistor pull-up circuit, and comprise power supply and pull-up resistor R, described power supply is connected with one end of pull-up resistor R, and described power supply has earth terminal; Also comprise the control module be connected with the pull-up resistor R other end by data wire, this data wire has parasitic capacitance, C1, and described control module comprises:

Capacitor charging circuit, comprise the first charging circuit and the second charging circuit, by described first charging circuit or the second charging circuit be parasitic capacitance C1 charging, energy storage device, described inductance L and parasitic capacitance C1 is provided with in described first charging circuit, this energy storage device has earth terminal, is provided with described inductance L and parasitic capacitance C1 in described second charging circuit;

Capacitor discharging circuit, comprise the first discharge circuit and the second discharge circuit, by described first discharge circuit or the second discharge circuit be parasitic capacitance C1 electric discharge, be provided with described energy storage device, inductance L and parasitic capacitance C1 in described first discharge circuit, in described second discharge circuit, be provided with described inductance L and parasitic capacitance C1;

Inductive current holding circuit, for keeping the electric current in inductance L;

Accentuator over the ground, for by described parasitic capacitance C1 ground connection;

Switch arrays, comprise multiple switch, and multiple described switch-linear hybrid is in described first charging circuit, the second charging circuit, the first discharge circuit, the second discharge circuit, inductive current holding circuit and over the ground in accentuator;

Control unit, comprise timing sequencer and the data for detecting described parasitic capacitor voltage set up state detector, described timing sequencer produces based on the level transitional states of the input signal DT x of data collector the break-make controlling described switch, described capacitor charging circuit or capacitor discharging circuit are turned on or off, described timing sequencer also maintains the voltage of parasitic capacitance C1 by described pull-up resistor pull-up circuit when parasitic capacitance C1 charges to the first voltage (logic high namely set) of setting, and make the work of inductive current holding circuit, when parasitic capacitance C1 is discharged to the second voltage (logic low namely set) of setting, control switch is to make accentuator work over the ground, and make the work of inductive current holding circuit.

In the present embodiment, described control unit also comprises the current probe for detecting inductive current, and described current probe is connected with inductance L and timing sequencer respectively.

In the present embodiment, described control module also comprises inductive current supplementary circuitry, and described inductive current supplementary circuitry comprises energy storage device and inductance L, and the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance L supplemental current.

In the present embodiment, described control module also comprises the power charging circuit for charging to energy storage device, described power charging circuit comprises power supply and energy storage device, and the switch conduction controlled in power charging circuit by timing sequencer thinks that energy storage device charges.

In the present embodiment, described control module also comprise for by energy regenerating in inductance to the inductance energy recovery circuit of energy storage device, described inductance energy recovery circuit comprises inductance L and energy storage device, by timing sequencer control switch conduction in inductance energy recovery circuit with by energy regenerating in inductance in energy storage device.

In the present embodiment, described timing sequencer is according to the upper control signal of jumping along producing parasitic capacitance C1 charging in input signal, and described timing sequencer is according to the lower control signal of jumping along producing parasitic capacitance C1 electric discharge in input signal.As shown in Figure 2, described energy storage device comprises storage capacitor Cst, and described storage capacitor Cst is connected with parasitic capacitance C1 by described switch arrays, inductance L, and described storage capacitor Cst has earth terminal.

Please continue to refer to Fig. 2, described switch arrays comprise the first interrupteur SW 1, second switch SW2, 3rd interrupteur SW 3, 4th interrupteur SW 4, 5th interrupteur SW 5 and the 6th interrupteur SW 6, described first charging circuit is provided with the first interrupteur SW 1 and the 6th interrupteur SW 6, described energy storage device is through the first interrupteur SW 1, inductance L, 6th interrupteur SW 6 is connected with parasitic capacitance C1, described first discharge circuit is provided with the 3rd interrupteur SW 3 and the 5th interrupteur SW 5, described energy storage device is also through the 3rd interrupteur SW 3, inductance L, 5th interrupteur SW 5 is connected with parasitic capacitance C1, described inductance L has first end and the second end, described second charging circuit is provided with second switch SW2 and the 6th interrupteur SW 6, the first end of described inductance L respectively with the first interrupteur SW 1, 5th interrupteur SW 5 connects, this first end is also through second switch SW2 ground connection, described second discharge circuit is provided with the 5th interrupteur SW 5 and the 4th interrupteur SW 4, second end of described inductance L respectively with the 3rd interrupteur SW 3, 6th interrupteur SW 6 connects, this second end is also through the 4th interrupteur SW 4 ground connection.

In the present embodiment, pull-up resistor R has the one end be connected with power supply, connecting line is provided with between 5th interrupteur SW 5 and the 6th interrupteur SW 6, the other end of pull-up resistor is connected with the connecting line between the 5th interrupteur SW 5 and the 6th interrupteur SW 6 by data wire, namely, described data wire is provided with in the 5th interrupteur SW 5 and between the 6th interrupteur SW 6 and pull-up resistor R.In the present embodiment, power supply, pull-up resistor and control module are altogether.

In the present embodiment, described timing sequencer is also when parasitic capacitance charging C1 is to the first voltage set, disconnect all switches (being the 5th interrupteur SW 5 and the 6th interrupteur SW 6 in the present embodiment) between described inductance L and parasitic capacitance C1, by the voltage of the pull-up resistor pull-up circuit maintenance work parasitic capacitance C1 of described data collector.

To sum up, in the present embodiment, Cst serves as energy accumulator, and SW1, SW2, SW3, SW4, SW5, SW6 constitute switch arrays, and L is inductance, and C1 is parasitic capacitance, and R is pull-up resistor.

Power supply is charged to Cst by R, SW6, SW3 directly to Cst charging and/or power supply by R, SW5, SW1, and Cst can give power supplied locally, above composition power charging circuit.

Parasitic capacitance C1 through SW5, SW2 to ground and/or C1 through SW6, SW4 to, above composition accentuator over the ground.

Cst forms inductance pre-charge circuit by SW1, SW4 and inductance.

Second end of inductance L is connected through SW6 and C1, and the first end of inductance L is connected through SW1 and Cst, or the first end of inductance L is connected to the ground through SW2, and the charging circuit of composition parasitic capacitance C1, utilizes the big current in inductance L to charge to C1.

The first end of inductance L is connected through SW5 and C1, and the second end of inductance L is connected through SW3 and Cst, or the second end of inductance L is connected to the ground through SW4, and the discharge circuit of composition parasitic capacitance C1, utilizes the big current in inductance L to discharge to C1.

Inductance L two ends are connected to same point through switch, composition inductive current holding circuit, and these switches can be made up of SW2, SW4, also can be made up of SW5, SW6, can also be made up of SW1, SW3, can certainly be to appoint one or more groups in these three groups.

Interrupteur SW 5, SW6 all dead circuits, composition pull-up resistor pull-up circuit.

The first end of inductance L is through SW2 ground connection, and the second end of inductance L connects Cst through SW3, and composition inductance energy recovery circuit, is recovered to the current energy in inductance L on Cst.

In the present embodiment, additionally provide a kind of transceiver system, comprise described data collector, the quantity of the control module in described transceiver system is at least two, the quantity of described pull-up resistor pull-up circuit is one, in arbitrary described control module the input signal of timing sequencer and data set up state detector output signal can with the output signal of other control modules, input signal swap data.

Please refer to Fig. 3, two control modules are had in this figure, the output signal DRx2 swap data of the input signal DT x1 of one of them control module and another control module, the output signal DRx1 of a control module and the input signal DT x2 swap data of another control module.Power supply can pass through R and the first switch arrays, positive energy exchange between L1 and the first energy storage device.Power supply also can pass through resistance R and second switch array, positive energy exchange between inductance L 2 and the second energy accumulator.First energy accumulator can pass through the first switch arrays, inductance L 1 and inductance L 2, positive energy exchange between second switch array and the second energy accumulator.Between first energy accumulator and power supply, between the second energy accumulator and power supply, also can carry out the exchange of energy simultaneously.By arranging transceiver system, the harmless transfer of energy can be realized, improve energy utilization efficiency.

Please refer to Fig. 1 and Fig. 2, the utility model additionally provides a kind of control method of data collector, for controlling described data collector, comprising:

Step 1, described control unit also comprise the current probe for detecting inductive current, described current probe is connected with inductance L and timing sequencer respectively, described receipt transceiver comprises inductive current supplementary circuitry, described inductive current supplementary circuitry comprises energy storage device and inductance L, the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance L precharge, and is charged to the first electric current I max;

Step 2, when the described input signal DT x of data collector be upper jumping along time, described timing sequencer control switch array makes capacitor charging circuit work, until parasitic capacitance C1 is charged to the first voltage of setting, data set up state detector measure that on parasitic capacitance C1, voltage reaches the first voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, make the work of pull-up resistor pull-up circuit simultaneously, now can annexation between cut-off switch array and pull-up resistor lower end, D point is maintained at logic high (the first voltage) by pull-up resistor R,

Step 3, when the described input signal DT x of data collector be lower jumping along time, described timing sequencer control switch array makes capacitor discharging circuit work, until parasitic capacitance is put into the second voltage of setting, data set up state detector measure that in parasitic capacitance, voltage reaches the second voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, make accentuator work over the ground simultaneously, make D point maintain logic low (the second voltage) by accentuator over the ground.

Data set up state detector detect voltage in parasitic capacitance reach the first voltage of setting time, also control described switch arrays and make power charging circuit work.In the present embodiment, owing to being disconnected the 5th interrupteur SW 5 and the 6th interrupteur SW 6 when D point is charged to the first voltage, in order to make power charging circuit work, can control the 5th interrupteur SW 5 and the first interrupteur SW 1 closes, inductive current now keeps electric current then to adopt the mode of closed 5th interrupteur SW 5 and the 6th interrupteur SW 6 to realize.Namely, when D point is charged to the first voltage, disconnection the 5th interrupteur SW 5 and the 6th interrupteur SW 6 are the preferred schemes of the present embodiment simultaneously, even if asynchronously disconnect the 5th interrupteur SW 5 and the 6th interrupteur SW 6, also by pull-up resistor pull-up circuit, D point voltage can be maintained the first voltage.

In the present embodiment, in step 2, specifically comprise:

Step 2.1, when the described input signal DT x of data collector be upper jumping along time, described timing sequencer control switch array makes capacitor charging circuit work, until parasitic capacitance C1 is charged to the first voltage of setting;

Step 2.2, be that lower jumping is along front at the described input signal DT x of data collector, inductive current is detected by current probe, if electric current is less than the second electric current I min in inductance L, then make the work of inductive current supplementary circuitry with supplementary inductive current by timing sequencer control switch, if before arriving in the lower jumping edge of input signal DT x, electric current in described inductance cannot be supplemented to the first electric current I max, till then the arriving of lower jumping edge being supplemented to always to described inductance L, if before arriving in the lower jumping edge of input signal DT x, electric current in described inductance L can be charged to the first electric current I max, then electric current in described inductance L is charged to Imax, then the work of described inductive current holding circuit is made by described timing sequencer control switch.

In the present embodiment, in step 3, specifically comprise:

Step 3.1, when the described input signal DT x of data collector be lower jumping along time, described timing sequencer control switch array makes capacitor discharging circuit work, until parasitic capacitance C1 is put into the second voltage of setting;

Step 3.2, the next one of the described input signal DT x of data collector is jumped before arriving, inductive current is detected by current probe, if electric current is less than the second electric current I min in inductance, then make the work of inductive current supplementary circuitry with supplementary inductive current by timing sequencer control switch, if before arriving in the upper jumping edge of input signal DT x, electric current in described inductance L cannot be supplemented to the first electric current I max, till then the arriving of upper jumping edge being supplemented to always to described inductance L, if before arriving in the upper jumping edge of input signal DT x, electric current in described inductance can be charged to the first electric current I max, then electric current in described inductance is charged to Imax, then the work of described inductive current holding circuit is made by described timing sequencer control switch.

In the present embodiment, when circuit is turned off, by timing sequencer control switch conduction in inductance energy recovery circuit with by energy regenerating in inductance L in energy storage device.

Embodiment two

In embodiment two, with embodiment one unlike, the parasitic capacitance of data wire is not only had in data collector, also there is the first electric capacity be arranged in this data collector, one end ground connection of the first electric capacity, the other end is connected to the either end place at data wire two ends, and the quantity of the first electric capacity can be one or more, first electric capacity and parasitic capacitance in parallel, can be equivalent to second electric capacity by the first electric capacity and parasitic capacitance.In embodiment one, charge and discharge control is carried out to parasitic capacitance, in embodiment two, charge and discharge control is carried out to the second electric capacity.

Particularly, in embodiment two, the utility model provides a kind of data collector, comprising: pull-up resistor pull-up circuit, comprises power supply and pull-up resistor, and described power supply is connected with one end of pull-up resistor, and described power supply has earth terminal; Also comprise the control module be connected with the pull-up resistor other end by data wire, one end is had at least to pass through the first capacity earth arranged in the two ends of this data wire, this data wire has parasitic capacitance, this first electric capacity and be equivalent to second electric capacity with the parasitic capacitance of the first Capacitance parallel connection, described control module comprises:

Capacitor charging circuit, comprise the first charging circuit and the second charging circuit, be the second capacitor charging by described first charging circuit or the second charging circuit, energy storage device, described inductance and the second electric capacity is provided with in described first charging circuit, this energy storage device has earth terminal, is provided with described inductance and the second electric capacity in described second charging circuit;

Capacitor discharging circuit, comprise the first discharge circuit and the second discharge circuit, be the second capacitor discharge by described first discharge circuit or the second discharge circuit, be provided with described energy storage device, inductance and the second electric capacity in described first discharge circuit, in described second discharge circuit, be provided with described inductance and the second electric capacity;

Inductive current holding circuit, for keeping the electric current in inductance;

Accentuator over the ground, for by described second capacity earth;

Switch arrays, comprise multiple switch, and multiple described switch-linear hybrid is in described first charging circuit, the second charging circuit, the first discharge circuit, the second discharge circuit, inductive current holding circuit and over the ground in accentuator;

Control unit, comprise timing sequencer and the data for detecting described second capacitance voltage set up state detector, described timing sequencer produces based on the level transitional states of the input signal of data collector the break-make controlling described switch, described capacitor charging circuit or capacitor discharging circuit are turned on or off, described timing sequencer also maintains the voltage of the second electric capacity by described pull-up resistor pull-up circuit when the first voltage that the second capacitor charging extremely sets, and make the work of inductive current holding circuit, when the second voltage that the second capacitor discharge extremely sets, control switch is to make accentuator work over the ground, and make the work of inductive current holding circuit.

In embodiment two, the utility model additionally provides a kind of control method of data collector, for controlling the data collector described in embodiment two, comprising:

Step 1, described control unit also comprise the current probe for detecting inductive current, described current probe is connected with inductance and timing sequencer respectively, described receipt transceiver comprises inductive current supplementary circuitry, described inductive current supplementary circuitry comprises energy storage device and inductance, the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance precharge, and is charged to the first electric current I max;

Step 2, when the described input signal of data collector be upper jumping along time, described timing sequencer control switch array makes capacitor charging circuit work, until the second electric capacity is charged to the first voltage of setting, data set up state detector measure that on the second electric capacity, voltage reaches the first voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, makes the work of pull-up resistor pull-up circuit simultaneously;

Step 3, when the described input signal of data collector be lower jumping along time, described timing sequencer control switch array makes capacitor discharging circuit work, until the second electric capacity is put into the second voltage of setting, data set up state detector measure that on the second electric capacity, voltage reaches the second voltage time, described timing sequencer control switch array makes the work of inductive current holding circuit, makes accentuator work over the ground simultaneously.

Each circuit in embodiment two please refer to the description in embodiment one, and the description of those skilled in the art in conjunction with the embodiments in one directly unambiguously can learn the principle of each circuit in embodiment two, therefore does not repeat them here.The utility model provides the control method of a kind of data collector, transceiver system and data collector, utilizes inductance to drive height fast and efficiently, drives the data wire of low strap pull-up resistor, and the parasitic capacitance can saving conventional data transmission drives dissipation power.When giving inductance precharge, LC is (in embodiment one, i.e. L and C1) speed of discharge and recharge is far faster than RC charge/discharge rates, major part energy shifts between L and C, reduce the time consumed on R, thus the energy ezpenditure reduced when driving on R, reach the object of efficient transfer data.Utilize inductance fast driving parasitic capacitance simultaneously, the strong correlation of transmission rate and pull-up resistor and parasitic capacitance product can be broken up, promote message transmission rate further, reduce the power consumption on pull-up resistor when data wire drags down.

Above are only preferred embodiment of the present utility model, any restriction is not played to the utility model.Any person of ordinary skill in the field; not departing from the scope of the technical solution of the utility model; the technical scheme disclose the utility model and technology contents make the variations such as any type of equivalent replacement or amendment; all belong to the content not departing from the technical solution of the utility model, still belong within protection range of the present utility model.

Claims (11)

1. a data collector, is characterized in that, comprising: pull-up resistor pull-up circuit, comprises power supply and pull-up resistor, and described power supply is connected with one end of pull-up resistor, and described power supply has earth terminal; Also comprise the control module be connected with the pull-up resistor other end by data wire, this data wire has parasitic capacitance, and described control module comprises:

Capacitor charging circuit, comprise the first charging circuit and the second charging circuit, by described first charging circuit or the second charging circuit be parasitic capacitance charging, energy storage device, described inductance and parasitic capacitance is provided with in described first charging circuit, this energy storage device has earth terminal, is provided with described inductance and parasitic capacitance in described second charging circuit;

Capacitor discharging circuit, comprise the first discharge circuit and the second discharge circuit, be parasitic capacitance discharge by described first discharge circuit or the second discharge circuit, be provided with described energy storage device, inductance and parasitic capacitance in described first discharge circuit, in described second discharge circuit, be provided with described inductance and parasitic capacitance;

Inductive current holding circuit, for keeping the electric current in inductance;

Accentuator over the ground, for by described parasitic capacitance ground connection;

Switch arrays, comprise multiple switch, and multiple described switch-linear hybrid is in described first charging circuit, the second charging circuit, the first discharge circuit, the second discharge circuit, inductive current holding circuit and over the ground in accentuator;

Control unit, comprise timing sequencer and the data for detecting described parasitic capacitor voltage set up state detector, described timing sequencer produces based on the level transitional states of the input signal of data collector the break-make controlling described switch, described capacitor charging circuit or capacitor discharging circuit are turned on or off, described timing sequencer also maintains the voltage of parasitic capacitance by described pull-up resistor pull-up circuit when parasitic capacitance charges to the first voltage of setting, and make the work of inductive current holding circuit, when the second voltage that parasitic capacitance discharge extremely sets, control switch is to make accentuator work over the ground, and make the work of inductive current holding circuit.

2. data collector as claimed in claim 1, it is characterized in that, described control unit also comprises the current probe for detecting inductive current, and described current probe is connected with inductance and timing sequencer respectively.

3. data collector as claimed in claim 2, it is characterized in that, described control module also comprises inductive current supplementary circuitry, described inductive current supplementary circuitry comprises energy storage device and inductance, and the switch conduction controlled in inductive current supplementary circuitry by timing sequencer thinks inductance supplemental current.

4. data collector as claimed in claim 1, it is characterized in that, described control module also comprises the power charging circuit for charging to energy storage device, described power charging circuit comprises power supply and energy storage device, and the switch conduction controlled in power charging circuit by timing sequencer thinks that energy storage device charges.

5. data collector as claimed in claim 1, it is characterized in that, described control module also comprise for by energy regenerating in inductance to the inductance energy recovery circuit of energy storage device, described inductance energy recovery circuit comprises inductance and energy storage device, by timing sequencer control switch conduction in inductance energy recovery circuit with by energy regenerating in inductance in energy storage device.

6. data collector as claimed in claim 1, it is characterized in that, described timing sequencer is according to the upper control signal of jumping along producing parasitic capacitance charging in input signal, and described timing sequencer is according to the lower control signal of jumping along producing parasitic capacitance discharge in input signal.

7. data collector as claimed in claim 1, it is characterized in that, described energy storage device comprises storage capacitor, and described storage capacitor is connected with parasitic capacitance by described switch arrays, inductance, and described storage capacitor has earth terminal.

8. data collector as claimed in claim 1, it is characterized in that, described timing sequencer is also when parasitic capacitance charges to the first voltage of setting, disconnect all switches between described inductance and parasitic capacitance, by the voltage of the pull-up resistor pull-up circuit maintenance work parasitic capacitance of described data collector.

9. the data collector according to any one of claim 1-8, it is characterized in that, described switch arrays comprise the first switch, second switch, 3rd switch, 4th switch, 5th switch and the 6th switch, described first charging circuit is provided with the first switch and the 6th switch, described energy storage device is through the first switch, inductance, 6th switch is connected with parasitic capacitance, described first discharge circuit is provided with the 3rd switch and the 5th switch, described energy storage device is also through the 3rd switch, inductance, 5th switch is connected with parasitic capacitance, described inductance has first end and the second end, described second charging circuit is provided with second switch and the 6th switch, the first end of described inductance respectively with the first switch, 5th switch connects, this first end is also through second switch ground connection, described second discharge circuit is provided with the 5th switch and the 4th switch, second end of described inductance respectively with the 3rd switch, 6th switch connects, this second end is also through the 4th switch ground connection.

10. a transceiver system, comprise data collector as claimed in any one of claims 1-9 wherein, it is characterized in that, the quantity of the control module in described transceiver system is at least two, the quantity of described pull-up resistor pull-up circuit is one, in arbitrary described control module the input signal of timing sequencer and data set up state detector output signal can with the output signal of other control modules, input signal swap data.

11. 1 kinds of data collectors, is characterized in that, comprising: pull-up resistor pull-up circuit, comprise power supply and pull-up resistor, and described power supply is connected with one end of pull-up resistor, and described power supply has earth terminal; Also comprise the control module be connected with the pull-up resistor other end by data wire, one end is had at least to pass through the first capacity earth arranged in the two ends of this data wire, this data wire has parasitic capacitance, this first electric capacity and be equivalent to second electric capacity with the parasitic capacitance of the first Capacitance parallel connection, described control module comprises:

Capacitor charging circuit, comprise the first charging circuit and the second charging circuit, be the second capacitor charging by described first charging circuit or the second charging circuit, energy storage device, described inductance and the second electric capacity is provided with in described first charging circuit, this energy storage device has earth terminal, is provided with described inductance and the second electric capacity in described second charging circuit;

Capacitor discharging circuit, comprise the first discharge circuit and the second discharge circuit, be the second capacitor discharge by described first discharge circuit or the second discharge circuit, be provided with described energy storage device, inductance and the second electric capacity in described first discharge circuit, in described second discharge circuit, be provided with described inductance and the second electric capacity;

Inductive current holding circuit, for keeping the electric current in inductance;

Accentuator over the ground, for by described second capacity earth;

Switch arrays, comprise multiple switch, and multiple described switch-linear hybrid is in described first charging circuit, the second charging circuit, the first discharge circuit, the second discharge circuit, inductive current holding circuit and over the ground in accentuator;

Control unit, comprise timing sequencer and the data for detecting described second capacitance voltage set up state detector, described timing sequencer produces based on the level transitional states of the input signal of data collector the break-make controlling described switch, described capacitor charging circuit or capacitor discharging circuit are turned on or off, described timing sequencer also maintains the voltage of the second electric capacity by described pull-up resistor pull-up circuit when the first voltage that the second capacitor charging extremely sets, and make the work of inductive current holding circuit, when the second voltage that the second capacitor discharge extremely sets, control switch is to make accentuator work over the ground, and make the work of inductive current holding circuit.