CN205193723U - Electric system in hard disk timesharing - Google Patents
Electric system in hard disk timesharing Download PDFInfo
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- CN205193723U CN205193723U CN201521031567.1U CN201521031567U CN205193723U CN 205193723 U CN205193723 U CN 205193723U CN 201521031567 U CN201521031567 U CN 201521031567U CN 205193723 U CN205193723 U CN 205193723U
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Abstract
The utility model discloses an electric system in hard disk timesharing, including have two at least IO ports the controller, with circuit on the hard disk that IO port one -to -one links to each other, the circuit includes that the switching element that links to each other with the IO port, the power device that links to each other with the switching element and at least one link to each other with the power device and connect the hard disk of first voltage on each way hard disk, the controller is used for sending the break -make that switching signal gave the switching element that corresponds and controlled this switching element, and the power device is used for linking to each other and connecing the hard disk of first voltage to provide second voltage to at least one and this power device according to the break -make of switching element. The system need not to rely on logic modules that the structure is comparatively complicated etc. And can realize in the timesharing of all hard disks to circuit structure, the cost is reduced have been simplified, and, because each hard disk can cut off the power supply or restart according to the control of controller at any time to make the flexibility of system stronger, system performance obtains further improvement.
Description
Technical field
The utility model relates to hard disk array field, particularly relates to a kind of hard disk time-sharing power system.
Background technology
For deep bid position memory device, namely the hard disk array memory device of multiple hard disk is possessed, its storage hard disk is when powering on, supply+the 5V of hard disk and the power consumption of+12V fail to be convened for lack of a quorum than much larger during hard disk stable operation, and, due to based on cost consideration, what select for deep bid position memory device normally to select according to the power consumption during system stable operation during power supply, therefore, when its each hard disk powers on simultaneously, the load of selected power module can be very large, even may occur the situation that power supply supply capacity is inadequate.
In order to solve the problem, Chinese patent CN201732568U provides a kind of system reducing requirements for power supply power in hard disk array system, this system comprises: clock module, switching signal distribution module, burr filtration module, switching signal isolation module, and electronic switch module; Wherein, clock module provides reference clock for switching signal distribution module, switching signal distribution module is made to produce power switch signal needed for each hard disk, switching signal is eliminated after burr through burr filtration module, electronic switch is arrived by switching signal isolation module, and then hard disk power supply opened by control electronic switch, start to reach the timesharing of many hard disks, reduce system to the object of the power requirement of power supply.
But, for deep bid position memory device, the hardware circuit of this scheme realizes comparatively complicated, except needing logic module that each structure is comparatively complicated, each hard disk also needs to arrange two groups of electronic switch module, such as, with by P-MOS (P-Mental-Oxide-Semiconductor, P type Metal-oxide-semicondutor) as the core devices of electronic switch module, so 24 dish positions hardware circuits then need 48 groups of P-MOS, thus substantially increase system complicacy, improve system cost.In addition, because this system is when all hard disk power switches are opened, subsequent clock input is no longer worked, and the power switch of hard disk keeps conducting state always, cannot carry out reboot operation to hard disk, thus makes the dirigibility of system also not good.
In sum, there is lower etc. the problem of the higher and dirigibility of complex circuit, cost in existing hard disk time-sharing power mode, therefore, needs a kind of new hard disk time-sharing power system badly, solve the problems referred to above.
Utility model content
The utility model embodiment provides a kind of hard disk time-sharing power system, there is lower etc. the problem of the higher and dirigibility of complex circuit, cost in order to solve existing hard disk time-sharing power mode.
The utility model embodiment provides a kind of hard disk time-sharing power system, and described system comprises:
There is the controller of at least two I/O (input and output) port;
At least two-way hard disk electrification circuit be connected with the I/O port one_to_one corresponding of described controller, each road hard disk electrification circuit comprises the switching device be connected with the I/O port of controller, the power device be connected with switching device, to be connected and to be connected to the hard disk of the first voltage with at least one with power device;
Wherein, described controller is used for transmit button signal to corresponding switching device and controls the break-make of described switching device, and described power device is used for being connected with described power device and the hard disk being connected to the first voltage provides the second voltage at least one according to the break-make of described switching device.
Alternatively, described first voltage is+12V, and described second voltage is+5V.
Further alternatively, described power device is N-MOS (N-Mental-Oxide-Semiconductor, N-type metal-oxide semiconductor fieldeffect transistor), the drain electrode of described N-MOS is connected with the second voltage, source electrode to be connected with power device with at least one and the hard disk being connected to the first voltage is connected, and the first end of grid and the switching device corresponding with described power device is connected;
The first end of the switching device that described and described power device is corresponding is connected with pull-up voltage on first, the second end ground connection, and the 3rd end is connected with the I/O port of the correspondence of described controller.
Alternatively, pull-up voltage is+12V on described first.
Further alternatively, described power device is P-MOS, the source electrode of described P-MOS is connected with the second voltage, and at least one is connected with power device and the hard disk being connected to the first voltage is connected in drain electrode, and the first end of grid and the switching device corresponding with described power device is connected;
The first end of the switching device that described and described power device is corresponding is connected with pull-up voltage on second, the second end ground connection, and the 3rd end is connected with the I/O port of the correspondence of described controller.
Alternatively, pull-up voltage is+5V on described second.
Equally alternatively, described switching device is triode or field effect transistor.
The utility model beneficial effect is as follows:
The utility model embodiment provides a kind of hard disk time-sharing power system, comprises the controller with at least two I/O ports; At least two-way hard disk electrification circuit be connected with the I/O port one_to_one corresponding of described controller, each road hard disk electrification circuit comprises the switching device be connected with the I/O port of controller, the power device be connected with switching device, to be connected and to be connected to the hard disk of the first voltage with at least one with power device; Wherein, described controller is used for transmit button signal to corresponding switching device and controls the break-make of described switching device, and described power device is used for being connected with described power device and the hard disk being connected to the first voltage provides the second voltage at least one according to the break-make of described switching device.That is, described system can control powering on or power-off of at least one hard disk corresponding with each I/O port of described controller respectively, and to make when hard disk powers on, all hard disks can power in timesharing, reduce the power requirement to power supply; And, due to each I/O port only corresponding switching device, power device of controller, just can control at least one hard disk, namely can realize the time-sharing power of all hard disks without the need to the logic module etc. that dependency structure is comparatively complicated, thus make circuit simple, with low cost; In addition, because controller when system cloud gray model, can control the power-off of each hard disk or restart neatly, therefore, make the dirigibility of system comparatively strong, the performance of system is further enhanced.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly introduced, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the structural representation of the described hard disk time-sharing power system that the utility model embodiment provides;
Figure 2 shows that described in the utility model embodiment the structural representation of the hard disk time-sharing power system taking N-MOS as power device;
Figure 3 shows that described in the utility model embodiment the structural representation of the hard disk time-sharing power system taking P-MOS as power device.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of hard disk time-sharing power system, and described hard disk time-sharing power system is applicable to deep bid position memory device, namely possesses the hard disk array memory device of multiple hard disk, is not limited in any way this.
Particularly, as shown in Figure 1, the structural representation of its described hard disk time-sharing power system provided for the present embodiment, described system comprises:
There is the controller 101 of at least two I/O ports;
At least two-way hard disk electrification circuit be connected with the I/O port one_to_one corresponding of described controller 101, each road hard disk electrification circuit comprises the switching device 102 be connected with the I/O port of controller 101, the power device 103 be connected with switching device 102, to be connected and to be connected to the hard disk 104 of the first voltage with at least one with power device 103;
Wherein, described controller 101 is given corresponding switching device 102 for transmit button signal and is controlled the break-make of described switching device 102, and described power device 103 is for being connected with described power device 103 and the hard disk 104 being connected to the first voltage provides the second voltage at least one according to the break-make of described switching device 102.
It should be noted that, for arbitrary switching device 102, when controller 101 exports the first switching signal based on the I/O port corresponding with described switching device 102 to described switching device 102, described switching device 102 can perform the first action, makes the power device 103 corresponding with described switching device 102 provide the second voltage to its at least one corresponding hard disk 104; When controller 101 exports second switch signal based on the I/O port corresponding with described switching device 102 to described switching device 102, described switching device 102 can perform the second action, makes the power device 103 corresponding with described switching device 102 not provide the second voltage to its at least one corresponding hard disk 104;
Wherein, described second voltage is the trigger voltage opened for controlling hard disk logic function, and described first voltage is for after hard disk logic function is opened, and maintains the operation voltage of hard disk motor rotation.
It should be noted that, described controller 101 can be single-chip microcomputer (MicrocontrollerUnit, MCU), programmable logic device (PLD) (programmablelogicdevice, PLD), Programmable Logic Controller (ProgrammableLogicController, etc. PLC) arbitrarily can to switching device transmit button signal, with the control device of gauge tap break-over of device or disconnection, the present embodiment is not limited in any way at this.
In addition, for any two switching devices 102, described controller 101 exports corresponding switching signal, to make the power device 103 corresponding with described any two switching devices 102 provide the time point of the second voltage identical or different to its at least one corresponding hard disk 104 to described any two switching devices 102.
Also it should be noted that, the first action of described switching device 102 is off, and the second action is conducting; Or the first action is conducting, and the second action is off, and does not all repeat this.
Namely, controller 101 is by controlling the time point sending corresponding switching signal to different switching devices 102, the trip time controlling different switching devices 102 puts or ON time point, and then controls the power-on time point of different hard disk 104, to reach the effect of time-sharing power.
Such as, to input the first switching signal to switching device 102, switching device 102 is disconnected, and then make the power device 103 corresponding with described switching device 102 provide the second voltage to be example to its at least one corresponding hard disk 104, controller 101 is by controlling the time point sending corresponding first switching signal to different switching devices 102, control some trip time of different switching devices 102, and then control the power-on time point of different hard disk 104, to reach the effect of time-sharing power.
Further, it should be noted that, due to the characteristic according to hard disk, the condition of hard disk motor rotation comprises: access trigger voltage (as+5V voltage), namely hard disk logic function is started, and access operation voltage (as+12V electric moter voltage); When trigger voltage (as+5V voltage) does not access, hard disk logic function is closed, even if there is operation voltage (as+12V electric moter voltage) to access hard disk, hard disk motor also can not operate, and namely cannot produce the load of operation voltage (as+12V electric moter voltage).Therefore, based on this characteristic, in the described system that the present embodiment provides, each hard disk is directly connected with the first voltage (i.e. operation voltage), namely, do not carry out the timesharing access process of the first voltage in addition, and whether carry out indirectly to control the load of the first voltage of each hard disk by the access of second voltage (i.e. trigger voltage) of each hard disk of Time-sharing control, to simplify time-sharing power system.
Particularly, the second voltage of each hard disk 104, namely whether the access of trigger voltage controls by described controller 101.For arbitrary hard disk 104, when the controller 101 control switching device 102 corresponding with this hard disk 104 disconnects, the power device 103 corresponding with this hard disk 104 can provide trigger voltage to this hard disk 104, the logic function of this hard disk 104 is opened, motor starts running, the operation voltage be now directly connected with this hard disk 104 all the time also starts there is load, thus maintains the running of this hard disk 104 motor; When controller 101 controls switching device 102 conducting corresponding with this hard disk 104, the power device 103 corresponding with this hard disk 104 can stop providing trigger voltage to this hard disk 104, the logic function of this hard disk 104 is closed, motor quits work thereupon, the operation voltage be now directly connected with this hard disk 104 is also non-loaded, cannot maintain the running of hard disk 104 motor.Namely whether controller 101 need control the access of the second voltage of each hard disk 104, and can control powering on or power-off of each hard disk, therefore not to repeat here for the present embodiment.
It should be noted that, in the present embodiment, except the disconnection of switching device 102 can be set to, the power device 103 corresponding with described switching device 102 is made to provide outside the second voltage (i.e. trigger voltage) to its at least one corresponding hard disk 104, also can be set to, the conducting of switching device 102, makes the power device 103 corresponding with described switching device 102 provide the second voltage to its at least one corresponding hard disk 104, does not repeat this.
In addition, preferably, in the present embodiment, in order to more accurately carry out the control of time-sharing power to each hard disk 104, each power device 103 can only be connected with a hard disk 104, i.e. each I/O port of controller 101 corresponding hard disk 104 respectively, with the power-on time point making controller 101 more adequately can control each hard disk 104.
Certainly, it should be noted that, when hard disk 104 quantity is more, in order to simplied system structure, each power device 103 also can be connected with multiple hard disk 104, namely each I/O port of controller 101 corresponding multiple hard disk 104 respectively, makes controller 101 can control the power-on time point of every group hard disc 104 comparatively easily.
Such as, for the memory device of 16 dish positions, now, a controller 101,4 switching devices 102 and 4 can be only needed to be connected to the power device 103 of 4 hard disks 104 respectively, to reach the object of simplied system structure.
Further, it should be noted that, according to the actual requirements, each power device 103 connect hard disk 104 number can identical also can be different, the present embodiment is not limited in any way at this.
From the foregoing described in the present embodiment, the described hard disk time-sharing power system that this enforcement provides, powering on or power-off of at least one hard disk corresponding with each I/O port of controller can be controlled respectively, to make when hard disk powers on, all hard disks can power in timesharing, reduce the power requirement to power supply; And, due to each I/O port only corresponding switching device, power device of controller, just can control at least one hard disk, namely can realize the time-sharing power of all hard disks without the need to the logic module etc. that dependency structure is comparatively complicated, thus make circuit simple, with low cost; In addition, because controller can when system cloud gray model, control the power-off of each hard disk neatly or restart (as based on each hard disk of software control power-off or restart), therefore, make the dirigibility of system comparatively strong, the performance of system is further enhanced.
Further, similar with the power supply the principle of existing hard disk, described first voltage can be+12V, and described second voltage can be+5V, and the present embodiment does not repeat them here.
Alternatively, described power device 103 can be N-MOS or P-MOS etc.
Particularly, when described power device 103 is N-MOS, the structure of system described in the present embodiment specifically can as shown in Figure 2, as shown in Figure 2:
The leakage D pole of described N-MOS is connected with the second voltage, and S pole, source to be connected with power device 103 with at least one and the hard disk 104 being connected to the first voltage is connected, and the first end of grid G pole and the switching device 102 corresponding with described power device 103 is connected;
The first end of the switching device 102 that described and described power device 103 is corresponding is connected with pull-up voltage on first, the second end ground connection, and the 3rd end is connected with the I/O port of the correspondence of described controller 101.
It should be noted that, when the switching signal that described controller 101 is exported to the switching device 102 corresponding with described power device 103 by corresponding I/O port, when making the first end of described switching device 102, the second end disconnection, the G pole of described power device 103 connects pull-up voltage on first, make the conducting of described power device 103, and provide the second voltage at least one hard disk 104 corresponding with it, such that the logic function of hard disk 104 is opened, motor rotation;
When the switching signal that described controller 101 is exported to the switching device 102 corresponding with described power device 103 by corresponding I/O port, when making the first end of described switching device 102, the second end conducting, the G pole ground connection of described power device 103, make described power device 103 pinch off, to stop providing the second voltage at least one hard disk 104 corresponding with it, such that hard disk 104 logic function is closed, motor shuts down.
Wherein, it should be noted that, for arbitrary switching device 102, the first end of described switching device 102 is specifically connected with pull-up voltage on corresponding first by a pull-up resistor (R1 or R2 as shown in Figure 2 etc.), repeats no more herein.
In addition, it should be noted that, in order to improve the convenience that voltage is chosen, and, reduce the quantity of system power supply power module, on described first, pull-up voltage also can be+12V, to share same power module, to avoid the additional power supply of system to supply with described first voltage.Certainly, alternatively, on described first, pull-up voltage also can be the arbitrary value within a rational voltage span, and the present embodiment is not limited in any way at this.
Such as, when the power device 103 in system is N-MOS, turn-on condition due to N-MOS is that the voltage difference (i.e. Vgs) between G pole and S pole is greater than the first setting threshold value (first sets threshold value is determined by N-MOS pipe self property), thus, as long as the value of pull-up voltage can make the voltage difference between the G pole of N-MOS and S pole (i.e. Vgs) be greater than the first setting threshold value on first, the present embodiment does not repeat this.
Alternatively, when described power device 103 is P-MOS, the structure of system described in the present embodiment specifically can as shown in Figure 3, as shown in Figure 3:
The S pole of described P-MOS is connected with the second voltage, and D pole to be connected with power device 103 with at least one and the hard disk 104 being connected to the first voltage is connected, and the first end of G pole and the switching device 102 corresponding with described power device 103 is connected;
The first end of the switching device 102 that described and described power device 103 is corresponding is connected with pull-up voltage on second, the second end ground connection, and the 3rd end is connected with the I/O port of the correspondence of described controller 101.
It should be noted that, when the switching signal that described controller 101 is exported to the switching device 102 corresponding with described power device 103 by corresponding input/output port, when making the first end of described switching device 102, the second end conducting, the G pole ground connection of described power device 103, make the conducting of described power device 103, and provide the second voltage at least one hard disk 104 corresponding with it, such that the logic function of hard disk 104 is opened, motor rotation;
When the switching signal that described controller 101 is exported to the switching device 102 corresponding with described power device 103 by corresponding input/output port, when making the first end of described switching device 102, the second end disconnection, the G pole of described power device 103 connects pull-up voltage on second, make described power device 103 pinch off, to stop providing the second voltage at least one hard disk 104 corresponding with it, such that hard disk 104 logic function is closed, motor shuts down.
Wherein, it should be noted that, for arbitrary switching device 102, the first end of described switching device 102 is specifically connected with pull-up voltage on corresponding second by a pull-up resistor (R1 or R2 as shown in Figure 3 etc.), repeats no more herein.
In addition, it should be noted that, in order to improve the convenience that voltage is chosen, and reduce the quantity of system power supply power module, on described second, pull-up voltage also can be+5V, to share same power module, to avoid the additional power supply of system to supply with described second voltage.Certainly, alternatively, on described second, pull-up voltage also can be the arbitrary value within a rational voltage span, and the present embodiment is not limited in any way at this.
Such as, when the power device 103 in system is P-MOS, turn-on condition due to P-MOS is that the voltage difference (i.e. Vgs) between G pole and S pole is less than the second setting threshold value (second sets threshold value is determined by P-MOS pipe self property), thus, as long as the value of pull-up voltage can make the voltage difference between the G pole of P-MOS and S pole (i.e. Vgs) be more than or equal to the second setting threshold value on second, the present embodiment does not repeat this.
In addition, it should be noted that, due in original state, each hard disk 104 all not yet powers on, that is, each switching device 102 is all connected to and is provided for it accordingly and controls power device 103 corresponding thereto does not provide switching signal from the second voltage at least one hard disk 104 of correspondence.Such as, for Fig. 2, can think in original state, each switching device 102 is all connected to and is provided for its first end, the second end conducting accordingly, does not provide the switching signal of the second voltage to make the power device 103 corresponding with each switching device 102 to its at least one corresponding hard disk 104; For Fig. 3, can think in original state, each switching device 102 is all connected to and is provided for its first end accordingly, the second end disconnects, and does not provide the switching signal of the second voltage to make the power device 103 corresponding with each switching device 102 to its at least one corresponding hard disk 104.
Thus, now, can be provided for it control by means of only what control to input to each switching device 102 power device 103 corresponding thereto to provide point and duration input time from the switching signal of the second voltage at least one hard disk 104 of correspondence, the time-sharing power of the hard disk 104 of each switching device 102 correspondence and the duration that powers on can be controlled.
Such as, for Fig. 2, can by means of only control to each switching device 102 input be provided for its first end, the point and duration input time of switching signal that the second end disconnects, the time-sharing power of the hard disk 104 of each switching device 102 correspondence and the duration that powers on can be controlled; For Fig. 3, by means of only the point and duration input time of switching signal being provided for its first end, the second end conducting controlling to input to each switching device 102, can control the time-sharing power of the hard disk 104 of each switching device 102 correspondence and the duration that powers on.
Or, now, also can control by means of only controlling to stop to be provided for it to the input of each switching device 102 power device 103 corresponding thereto not to provide time point from the switching signal of the second voltage at least one hard disk 104 of correspondence, the time-sharing power of the hard disk 104 of each switching device 102 correspondence can be realized.
Such as, for Fig. 2, by means of only controlling to stop the time point of switching signal being provided for its first end, the second end conducting to the input of each switching device 102, the time-sharing power of the hard disk 104 of each switching device 102 correspondence can be realized; For Fig. 3, by means of only the time point controlling the switching signal that stopping is provided for its first end to each switching device 102 input, the second end disconnects, can realize the time-sharing power of the hard disk 104 of each switching device 102 correspondence, this is not repeated.
In addition, for hardware circuit cost consideration, described power device 103 is preferably N-MOS, and the present embodiment does not repeat them here.
Alternatively, described switching device 102 can be triode or field effect transistor, and as metal-oxide-semiconductor etc., also can be the switching device 102 that other can realize the switch control functions described in the present embodiment arbitrarily, the present embodiment is not limited in any way at this.
The specific works flow process of the hard disk time-sharing power system described in the present embodiment will be described with two instantiations below:
Example one:
Suppose, controller has two I/O mouth: I/O1 and I/O2, correspondingly with switching device K1 with K2 be respectively connected, power device adopts N-MOS pipe N1 and N2, and the G pole of N1 with N2 is corresponding with K1 with K2 is respectively connected, the S pole of N1 connects hard disk 1, the S pole of N2 connects pull-up voltage on hard disk 2 and hard disk 3, first voltage, the second voltage and first and is respectively+12V ,+5V and+12V, then, now, the structure of described hard disk time-sharing power system specifically can be as shown in Figure 2.As shown in Figure 2, now, the workflow of described hard disk time-sharing power system specifically can be:
Step 1: system obtains electric operation, if controller is according to the actual demand that powers on, determine to control that hard disk 1 powers on, hard disk 2 and 3 power-off, then export the first switching signal by I/O1 port to K1, disconnect with control K1, make the G pole of N1 connect+12V first on pull-up voltage, N1 conducting, hard disk 1 accesses+5V voltage, and logic function is opened, motor rotation; Meanwhile, the I/O2 port of controller exports second switch signal, with control K2 conducting to K2;
Distinguishingly, due in original state, each hard disk all not yet powers on, thus, for Fig. 2, can think in original state, each switching device 102 be all connected to be provided for accordingly its first end, the second end conducting, to make the power device 103 corresponding with each switching device 102 not provide the second switch signal of the second voltage to its at least one corresponding hard disk.Thus, step 1 also can perform and be:
If controller is according to the actual demand that powers on, determine to control that hard disk 1 powers on, hard disk 2 and 3 power-off, then stop exporting second switch signal to K1, disconnect with control K1, make the G pole of N1 connect+12V first on pull-up voltage, N1 conducting, hard disk 1 accesses+5V voltage, and logic function is opened, motor rotation; Meanwhile, the I/O2 port of controller keeps exporting second switch signal, with control K2 conducting to K2; That is, now, can think, not input second switch signal to the switching device 102 of correspondence and be namely equivalent to input the first switching signal to the switching device 102 of correspondence, repeat no more herein.
Step 2: when controller is according to the actual demand that powers on, when determining that need control hard disk 2 and 3 also powers on, the first switching signal is exported to K2 by the I/O2 port of controller, disconnect with control K2, make the G pole of N2 connect+12V first on pull-up voltage, N2 conducting, hard disk 2 and hard disk 3 access+5V voltage, logic function is opened, motor rotation; Meanwhile, K1 remains open, and hard disk 1 runs well;
Step 3: when hard disk 1, hard disk 2 and hard disk 3 run well, when controller is according to the actual demand that powers on, when determining to control hard disk 1 power-off, export second switch signal by the I/O1 port of controller to K1, with control K1 conducting, make the G pole ground connection of N1, N1 pinch off, hard disk 1 power-off, logic function is closed, and motor shuts down;
Step 4: when controller is according to the actual demand that powers on, when determining that again need control hard disk 1 powers on, again the first switching signal is exported to K1 by the I/O1 port of controller, disconnect with control K1, make the G pole of N1 connect+12V first on pull-up voltage, N1 conducting, hard disk 1 accesses+5V voltage, logic function is opened, and motor recovers running.
It should be noted that, the powering on of each hard disk, power-off and the sequencing of restarting all can arrange (hard disk 2 and the common corresponding I/O1 port of hard disk 3 flexibly according to actual conditions, so both power on or power-off Complete Synchronization), this example has just carried out illustrating to illustrate to the workflow of described system, and therefore not to repeat here for the present embodiment.
Example two:
Suppose, controller has two I/O mouth: I/O1 and I/O2, correspondingly with switching device K1 with K2 be respectively connected, power device adopts P-MOS pipe P1 and P2, and the G pole of P1 with P2 is corresponding with K1 with K2 is respectively connected, the D pole of P1 connects hard disk 1, the D pole of P2 connects pull-up voltage on hard disk 2 and hard disk 3, first voltage, the second voltage and second and is respectively+12V ,+5V and+5V, then, now, the structure of described hard disk time-sharing power system specifically can be as shown in Figure 3.As shown in Figure 3, now, the workflow of described hard disk time-sharing power system specifically can be:
Step 1: system obtains electric operation, if controller is according to the actual demand that powers on, determine to control that hard disk 1 powers on, hard disk 2 and 3 power-off, then export the first switching signal by I/O1 port to K1, with control K1 conducting, make the G pole ground connection of P1, P1 conducting, hard disk 1 accesses+5V voltage, and logic function is opened, motor rotation; Meanwhile, the I/O2 port of controller exports second switch signal to K2, disconnects with control K2;
Distinguishingly, due in original state, each hard disk all not yet powers on, thus, for Fig. 3, can think in original state, each switching device 102 is all connected to and is provided for its first end accordingly, the second end disconnects, to make the power device 103 corresponding with each switching device 102 not provide the second switch signal of the second voltage to its at least one corresponding hard disk.Thus, step 1 also can perform and be:
If controller is according to the actual demand that powers on, determine to control that hard disk 1 powers on, hard disk 2 and 3 power-off, then stop exporting second switch signal to K1, with control K1 conducting, make the G pole ground connection of P1, P1 conducting, hard disk 1 accesses+5V voltage, and logic function is opened, motor rotation; Meanwhile, the I/O2 port of controller keeps exporting second switch signal to K2, disconnects with control K2; That is, now, can think, not input second switch signal to the switching device 102 of correspondence and be namely equivalent to input the first switching signal to the switching device 102 of correspondence, repeat no more herein.
Step 2: when controller is according to the actual demand that powers on, when determining that need control hard disk 2 and 3 also powers on, the first switching signal is exported to K2 by the I/O2 port of controller, with control K2 conducting, make the G pole ground connection of P2, P2 conducting, hard disk 2 and hard disk 3 access+5V voltage, logic function is opened, motor rotation; Meanwhile, K1 keeps conducting, and hard disk 1 runs well;
Step 3: when hard disk 1, hard disk 2 and hard disk 3 run well, when controller is according to the actual demand that powers on, when determining to control hard disk 1 power-off, export second switch signal by the I/O1 port of controller to K1, disconnect with control K1, make the G pole of P1 connect+5V second on pull-up voltage, P1 pinch off, hard disk 1 power-off, logic function is closed, and motor shuts down;
Step 4: when controller is according to the actual demand that powers on, when determining that again need control hard disk 1 powers on, again the first switching signal is exported to K1 by the I/O1 port of controller, with control K1 conducting, make the G pole ground connection of P1, P1 conducting, hard disk 1 accesses+5V voltage, logic function is opened, and motor recovers running.
It should be noted that, the powering on of each hard disk, power-off and the sequencing of restarting all can arrange (hard disk 2 and the common corresponding I/O1 port of hard disk 3 flexibly according to actual conditions, so both power on or power-off Complete Synchronization), this example has just carried out illustrating to illustrate to the workflow of described system, and therefore not to repeat here for the present embodiment.
The utility model embodiment provides a kind of hard disk time-sharing power system, comprises the controller with at least two I/O ports; At least two-way hard disk electrification circuit be connected with the I/O port one_to_one corresponding of described controller, each road hard disk electrification circuit comprises the switching device be connected with the I/O port of controller, the power device be connected with switching device, to be connected and to be connected to the hard disk of the first voltage with at least one with power device; Wherein, described controller is used for transmit button signal to corresponding switching device and controls the break-make of described switching device, and described power device is used for being connected with described power device and the hard disk being connected to the first voltage provides the second voltage at least one according to the break-make of described switching device.
That is, described system can control powering on or power-off of at least one hard disk corresponding with each I/O port of described controller respectively, and to make when hard disk powers on, all hard disks can power in timesharing, reduce the power requirement to power supply; And, due to each I/O port only corresponding switching device, power device of controller, just can control at least one hard disk, namely can realize the time-sharing power of all hard disks without the need to the logic module etc. that dependency structure is comparatively complicated, thus make circuit simple, with low cost; In addition, because controller when system cloud gray model, can control the power-off of each hard disk or restart neatly, therefore, make the dirigibility of system comparatively strong, the performance of system is further enhanced.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (7)
1. a hard disk time-sharing power system, is characterized in that, described system comprises:
There is the controller of at least two I/O ports;
At least two-way hard disk electrification circuit be connected with the I/O port one_to_one corresponding of described controller, each road hard disk electrification circuit comprises the switching device be connected with the I/O port of controller, the power device be connected with switching device, to be connected and to be connected to the hard disk of the first voltage with at least one with power device;
Wherein, described controller is used for transmit button signal to corresponding switching device and controls the break-make of described switching device, and described power device is used for being connected with described power device and the hard disk being connected to the first voltage provides the second voltage at least one according to the break-make of described switching device.
2. the system as claimed in claim 1, is characterized in that, described first voltage is+12V, and described second voltage is+5V.
3. the system as claimed in claim 1, it is characterized in that, described power device is N-MOS, the drain electrode of described N-MOS is connected with the second voltage, source electrode to be connected with power device with at least one and the hard disk being connected to the first voltage is connected, and the first end of grid and the switching device corresponding with described power device is connected;
The first end of the switching device that described and described power device is corresponding is connected with pull-up voltage on first, the second end ground connection, and the 3rd end is connected with the I/O port of the correspondence of described controller.
4. system as claimed in claim 3, it is characterized in that, on described first, pull-up voltage is+12V.
5. the system as claimed in claim 1, it is characterized in that, described power device is P-MOS, the source electrode of described P-MOS is connected with the second voltage, and at least one is connected with power device and the hard disk being connected to the first voltage is connected in drain electrode, and the first end of grid and the switching device corresponding with described power device is connected;
The first end of the switching device that described and described power device is corresponding is connected with pull-up voltage on second, the second end ground connection, and the 3rd end is connected with the I/O port of the correspondence of described controller.
6. system as claimed in claim 5, it is characterized in that, on described second, pull-up voltage is+5V.
7. the system as claimed in claim 1, is characterized in that, described switching device is triode or field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031567.1U CN205193723U (en) | 2015-12-11 | 2015-12-11 | Electric system in hard disk timesharing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521031567.1U CN205193723U (en) | 2015-12-11 | 2015-12-11 | Electric system in hard disk timesharing |
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| CN205193723U true CN205193723U (en) | 2016-04-27 |
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| CN201521031567.1U Expired - Fee Related CN205193723U (en) | 2015-12-11 | 2015-12-11 | Electric system in hard disk timesharing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518930A (en) * | 2019-07-24 | 2019-11-29 | 浙江大华技术股份有限公司 | Time-sharing power circuit and device |
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2015
- 2015-12-11 CN CN201521031567.1U patent/CN205193723U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518930A (en) * | 2019-07-24 | 2019-11-29 | 浙江大华技术股份有限公司 | Time-sharing power circuit and device |
| CN110518930B (en) * | 2019-07-24 | 2021-07-27 | 浙江大华技术股份有限公司 | Time-sharing power-on circuit and device |
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Granted publication date: 20160427 Termination date: 20201211 |