CN103729045A - Power management device and management method of touch system - Google Patents
Power management device and management method of touch system Download PDFInfo
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- CN103729045A CN103729045A CN201210384331.0A CN201210384331A CN103729045A CN 103729045 A CN103729045 A CN 103729045A CN 201210384331 A CN201210384331 A CN 201210384331A CN 103729045 A CN103729045 A CN 103729045A
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Abstract
The invention relates to a power management device and management method of a touch system. The power management device of the touch system comprises a boosted circuit, a detection circuit, an adjustment circuit and a load circuit, wherein the boosted circuit improves output voltage according to input voltage, voltage-stabilizing charging/discharging control signals and boost charging/discharging control signals, the detection circuit detects whether the output voltage reaches a preset value, according to the detection result of the detection circuit, the adjustment circuit adjusts the output voltages through the boost charging/discharging control signals and the voltage-stabilizing charging/discharging control signals respectively before and after the output voltage reaches the preset value, the load circuit receives the output voltage reaching the preset value according to the adjustment result of the adjustment circuit, and the boost charging/discharging control signals are faster than the voltage-stabilizing charging/discharging control signals when used for adjusting the output voltage.
Description
Technical field
The present invention relates to a kind of electric power controller field, particularly relate to a kind of electric power controller and method for managing power supply of touch-control system of rapid reaction sleep pattern.
Background technology
Contact panel (touch panel) can become Touch Screen in conjunction with display screen, it is generally as the input interface of electronic installation, in order to detect the input of touching in viewing area, and do not touch while inputing on Touch Screen when contact panel, conventionally user can enter sleep pattern (s leep mode) by the power-off of supply Touch Screen, to avoid unnecessary electrical source consumption.
Referring to shown in Figure 1A, is the circuit diagram for existing touch-control system electric power controller 1.As mentioned above, when the power-off of Touch Screen enters sleep pattern, there is no the input signals such as VDD, CK/CKB, also no-output voltage Vout, load circuit is attonity also, and wherein VDD is pulse wave/oppositely logic high levle voltage (or low-tension supply) of pulse wave signal CK/CKB.
Referring to shown in Figure 1B, is the working state figure for existing touch-control system electric power controller 1.When user makes contact panel return to mode of operation by sleep pattern, although must reaching operating voltage VDDH, load circuit can move, but from the circuit diagram of Figure 1A, because load circuit is electrically connected at the output terminal 11t of booster circuit 11, therefore load circuit still can consume certain output current Io, that is has more the consumption of load current I Load.For output voltage V out, conventionally have and utilize an external capacitor Cext charging, as the operating voltage source of load circuit works.In other words, when touch-control system returns to mode of operation by sleep pattern, start the charging for external capacitor Cext, but because output current Io is not completely to external capacitor C ext charging (charging current Ic), but load circuit has also consumed the output current (electric current of consumption is load current ILoad) of part, thereby make wish charging external capacitive Cext will spend the more duration of charging with the operating voltage VDDH that reaches load circuit and can work, the working state figure of its charging is as shown in curve 1, with a voltage stabilizing, to discharge and recharge control signal outside capacitor C ext is charged.
In sum, for the load circuit of touch-control system, it must reach a fixing operational voltage value VDDH and can return to mode of operation and normally work, but, touch-control system is now in design only for receiving when input touching, just external capacitor C ext is discharged and recharged control signal and is charged to the action of operating voltage VDDH with a voltage stabilizing, although the time of charging may be only several microseconds, but the charging rate that discharges and recharges control signal due to voltage stabilizing is excessively slow, thereby may make user feel in the use blunt or postpone.
Therefore, be badly in need of proposing a kind of electric power controller that can rapid reaction touch-control system sleep pattern, allow the user can more fast and convenient use electronic system.
Because the defect that above-mentioned existing touch-control system electric power controller exists, practical experience and the professional knowledge of the inventor based on being engaged in this type of product design manufacture and enriching for many years, actively research and innovation in addition, electric power controller and method for managing power supply to the touch-control system of founding a kind of new structure can improve general existing touch-control system electric power controller, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
The object of the invention is to, overcome the defect that existing touch-control system electric power controller exists, and provide a kind of electric power controller and method for managing power supply of touch-control system of new structure, technical matters to be solved is to make it can be by Circuit tuning before output voltage of booster circuit output reaches predetermined value, that is before reaching the operating voltage that load circuit can work, to discharge and recharge boosting of control signal faster than voltage stabilizing, discharge and recharge the output voltage of control signal adjustment booster circuit output, make output voltage can reach rapidly voltage predetermined value, so that touch-control system while returning to mode of operation from sleep pattern, can reduce significantly its reaction time, user more quick and convenient uses for example mobile phone, computing machine or there is the electronic system of Touch Screen etc.In addition, after the output voltage of booster circuit output reaches predetermined value, with voltage stabilizing, discharge and recharge control signal and adjust the output voltage that booster circuit is exported, make the rising of output voltage stabilization, avoid the consumption of power supply transition and avoid burning circuit unit (transistor) and effectively save power supply, further reaching the electric power controller effect of managing electrical power effectively.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of electric power controller of touch-control system proposing according to the present invention, wherein booster circuit, discharges and recharges control signal according to input voltage, voltage stabilizing and discharges and recharges control signal and promote output voltage with boosting; Circuit for detecting, detects this output voltage and whether reaches predetermined value; Circuit tuning, according to the detecting result of this circuit for detecting, before this output voltage reaches this predetermined value and afterwards, boosts and discharges and recharges control signal and this voltage stabilizing and discharge and recharge control signal and adjust this output voltage with this respectively; Wherein this boosts and discharges and recharges control signal the adjustment of this output voltage is discharged and recharged to control signal faster than this voltage stabilizing; And load circuit, according to the adjustment result of this Circuit tuning, receive this output voltage that arrives this predetermined value.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid mu balanced circuit that wherein more comprises, produces ripples wave amplitude in order to reduce this output voltage.
Aforesaid electric power controller, wherein this mu balanced circuit is to be storage capacitors.
Aforesaid electric power controller, wherein more comprises switch, is the front disconnection that reaches this predetermined value in this output voltage, the electric connection of this booster circuit and this load circuit.
Aforesaid electric power controller, wherein this switch is after this output voltage reaches this predetermined value, is electrically connected this booster circuit, with this output voltage of receiving this booster circuit to this load circuit.
Aforesaid electric power controller, wherein this frequency of discharging and recharging control signal of boosting discharges and recharges the frequency of control signal higher than this voltage stabilizing.
Aforesaid electric power controller, wherein this boost discharge and recharge control signal be according to this voltage stabilizing discharge and recharge control signal and pulse pressure discharge and recharge control signal be combined produce, the frequency that wherein this pulse pressure discharges and recharges control signal discharges and recharges control signal higher than this voltage stabilizing.
Aforesaid electric power controller, wherein this voltage stabilizing discharges and recharges control signal to discharge and recharge control signal with this pulse pressure is to be combined with logic sum gate.
Aforesaid electric power controller, wherein this booster circuit comprises charge pump.
Aforesaid electric power controller, wherein this charge pump comprises the gloomy charge pump of Dick.
Aforesaid electric power controller, wherein this circuit for detecting is to be comparer.
Aforesaid electric power controller, wherein this load circuit is to be drive signal generation circuit.
Aforesaid electric power controller, wherein this touch-control system is for mobile phone, computing machine or has the electronic system of Touch Screen.
Aforesaid electric power controller, wherein this predetermined value of this output voltage is the reference voltage for this touch-control system.
Aforesaid electric power controller, wherein this predetermined value of this output voltage is for producing according to the preset frequency of this touch-control system.
Aforesaid electric power controller, wherein this booster circuit comprises most transistors, and this majority transistor one of them be this storage capacitors of electric connection.
Aforesaid electric power controller, wherein this predetermined value of this output voltage is between this transistorized disruptive voltage that is electrically connected this storage capacitors, and between the operating voltage of this touch-control system.
The object of the invention to solve the technical problems also realizes by the following technical solutions.A kind of method for managing power supply of touch-control system proposing according to the present invention, it comprises: according to input voltage, voltage stabilizing, discharge and recharge control signal and boost and discharge and recharge control signal and promote the output voltage of booster circuit; By circuit for detecting detect this output voltage whether reach predetermined value before this output voltage reaches this predetermined value with afterwards, by Circuit tuning, boost and discharge and recharge control signal and this voltage stabilizing and discharge and recharge control signal and adjust this output voltage respectively with this, wherein this boosts and discharges and recharges control signal the lifting of this output voltage is discharged and recharged to control signal faster than this voltage stabilizing; And receive and arrive this output voltage of this predetermined value by load circuit.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid method for managing power supply, wherein more comprises that by mu balanced circuit, reducing this output voltage produces ripples wave amplitude.
Aforesaid method for managing power supply, wherein said method for managing power supply, this mu balanced circuit is to be external capacitive.
Aforesaid method for managing power supply, wherein more comprises by switch, disconnects the electric connection of this booster circuit and this load circuit before this output voltage reaches this predetermined value.
Aforesaid method for managing power supply, wherein this switch is after this output voltage reaches this predetermined value, is electrically connected this booster circuit, with this output voltage of receiving this booster circuit to this load circuit.
Aforesaid method for managing power supply, wherein this frequency of discharging and recharging control signal of boosting discharges and recharges the frequency of control signal higher than this voltage stabilizing.
Aforesaid method for managing power supply, wherein this boost discharge and recharge control signal be according to this voltage stabilizing discharge and recharge control signal and pulse pressure discharge and recharge control signal be combined produce, the frequency that wherein this pulse pressure discharges and recharges control signal discharges and recharges control signal higher than this voltage stabilizing.
Aforesaid method for managing power supply, wherein this voltage stabilizing discharges and recharges control signal to discharge and recharge control signal with this pulse pressure is to be combined with logic sum gate.
Aforesaid method for managing power supply, wherein this booster circuit comprises charge pump.
Aforesaid method for managing power supply, wherein this charge pump comprises the gloomy charge pump of Dick.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the electric power controller of touch-control system of the present invention and method for managing power supply can reach suitable technical progress and practicality, and there is the extensive value in industry, it at least has following advantages: the electric power controller of touch-control system of the present invention and method for managing power supply can be by Circuit tuning before the output voltage of booster circuit output reach predetermined value, that is before reaching the operating voltage that load circuit can work, to discharge and recharge boosting of control signal faster than voltage stabilizing, discharge and recharge the output voltage of control signal adjustment booster circuit output, make output voltage can reach rapidly voltage predetermined value, so that touch-control system while returning to mode of operation from sleep pattern, can reduce significantly its reaction time, and user more quick and convenient uses for example mobile phone, computing machine or there is the electronic system of Touch Screen etc.In addition, after the output voltage of booster circuit output reaches predetermined value, with voltage stabilizing, discharge and recharge control signal and adjust the output voltage that booster circuit is exported, make the rising of output voltage stabilization, avoid the consumption of power supply transition and avoid burning circuit unit (transistor) and effectively save power supply, further reaching the electric power controller effect of managing electrical power effectively.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Figure 1A is the circuit diagram of existing touch-control system power management;
Figure 1B is the working state figure for existing touch-control system power management;
Fig. 2 A is the circuit diagram for touch-control system electric power controller of the present invention;
Fig. 2 B is the working state figure for touch-control system electric power controller of the present invention;
Fig. 3 A adjusts a schematic diagram of output voltage for touch-control system electric power controller of the present invention utilizes Circuit tuning;
Fig. 3 B adjusts another schematic diagram of output voltage for touch-control system electric power controller of the present invention utilizes Circuit tuning;
Fig. 4 A is the working state figure for another embodiment of touch-control system electric power controller of the present invention;
Fig. 4 B is the working state figure for another embodiment of touch-control system electric power controller of the present invention; And
Fig. 5 is the process flow diagram for the method for managing power supply of touch-control system of the present invention.
1,2: electric power controller 11,21: booster circuit
211-214: transistor 11t, 21t: output terminal
22: circuit for detecting 23: load circuit
24: mu balanced circuit EN: enable signal
Vout: output voltage V ref: predetermined value
VDD: logic high levle voltage/low-tension supply VDDH: operating voltage
V1-V4: node voltage I
0:output current
I
c:the electric current I load of external capacitive: load current
CK: pulse wave signal CKB: oppositely pulse wave signal
C: the capacitor C of every ㄧ level circuit
s:stray capacitance
C
ext:external capacitive SW: change-over switch
Curve: 1～6
Embodiment
Technological means and the effect for further setting forth the present invention, for reaching predetermined goal of the invention, taked, below in conjunction with accompanying drawing and preferred embodiment, to electric power controller and the method for managing power supply of the touch-control system proposing according to the present invention, its embodiment, structure, feature and effect thereof, be described in detail as follows.
Referring to shown in Fig. 2 A, is the circuit diagram for touch-control system electric power controller of the present invention.Electric power controller 2 comprises booster circuit 21, circuit for detecting 22, Circuit tuning (not icon) and load circuit 23.Booster circuit 21 is according to input voltage, voltage stabilizing, to discharge and recharge control signal and boost to discharge and recharge control signal lifting output voltage V out.Circuit for detecting 22 is detected output voltage V out and whether is reached predetermined value.Circuit tuning is according to the detecting result of circuit for detecting 22, before output voltage V out reaches predetermined value, to boost, discharge and recharge control signal and adjust output voltage V out, and after output voltage V out reaches predetermined value, with voltage stabilizing, discharge and recharge control signal and adjust output voltage, wherein boosting discharges and recharges control signal the adjustment of output voltage V out is discharged and recharged to the adjustment of control signal to output voltage V out faster than voltage stabilizing.Load circuit 23, according to the adjustment result of Circuit tuning, receives the output voltage V out that arrives predetermined value.
In addition, for the load current ILoad on steady load circuit 23, to avoid causing the phenomenon of ripple (ripple) on output voltage V out, more comprise in an embodiment of the present invention mu balanced circuit 24, in order to reduce output voltage V out, produce ripples wave amplitude.Mu balanced circuit 24 can be external capacitive Cext, in order to store output voltage V out.
In an embodiment of the present invention, booster circuit 21 can use various voltage transitions (voltage converting) circuit that output voltage V out is provided, for example voltage regulator (voltage regulator) or charge pump (charge pump).Charge pump comprises for example Dick gloomy (Dickson) charge pump.
In an embodiment of the present invention, load circuit 23 is to be drive signal generation circuit, applicable to contact panel, in order to provide, drives signal to contact panel (not shown).Drive signal via contact panel, produce induced signal, its through signal process after in order to judge whether contact panel has touched and touch position.
In an embodiment of the present invention, Circuit tuning discharges and recharges control signal and voltage stabilizing and discharges and recharges control signal adjustment, changes output voltage V out according to boosting, that is boosts and discharge and recharge control signal and voltage stabilizing and discharge and recharge between control signal and output voltage V out and have fixing mathematical relation.Detailed mathematical relation will be in following content description.
In an embodiment of the present invention, circuit for detecting 22 is to be comparer, in order to compare output voltage values Vout and the voltage predetermined value Vref on mu balanced circuit 24.Voltage predetermined value Vref is the reference voltage for touch-control system, and it can be produced by energy gap (band gap) circuit, or produces according to the preset frequency CK of touch-control system.In addition, though circuit for detecting 22 is in embodiments of the present invention take the comparer of comparative voltage as example, but the device that detecting current changes also can be applicable to circuit for detecting 22 of the present invention, in order to detect the variation of output current Io, that is, when the output current Io producing when booster circuit 21 reaches electric current predetermined value, 23 of load circuits receive the output voltage V out that arrives predetermined values.
In addition, when being connected of change-over switch SW disconnecting consumers circuit 23 and booster circuit 21, also can make output current Io all flow to mu balanced circuit 24 charges, so that the output voltage V out on mu balanced circuit 24 can reach the operational voltage value VDDH of load circuit 23, make touch-control system can from sleep pattern, return to rapidly mode of operation when input is touched in reception.
Referring to shown in Fig. 2 B, is the working state figure for touch-control system electric power controller 2 of the present invention.From the above, voltage predetermined value Vref produces according to a preset frequency CK of touch-control system, therefore, when touch-control system arrives this preset frequency CK, the electric connection of opening change-over switch SW and load circuit 23 with an enable signal EN.The time of its charging is as shown in curve 2, than prior art, only with a voltage stabilizing, discharge and recharge the curve 1 of control signal adjustment output voltage V out, electric power controller 2 of the present invention can charge more quickly and arrive operational voltage value VDDH, and detailed curve charging process is in following description.
In addition, need pay special attention to, though the present invention in the starting point of graphic middle output voltage V out charging by zero, it be only simple illustration embodiments of the invention, and is not in order to limit the present invention.In other words, because the electric power controller 2 of touch-control system of the present invention has circuit for detecting 22, can be in order to detect the state of output voltage V out, when touch-control system returns to mode of operation by sleep pattern, while entering sleep pattern by mode of operation again, output voltage V out on mu balanced circuit 24 can't reduce significantly, but the electric connection with booster circuit 21 via change-over switch SW disconnecting consumers circuit 23, can make output current Io all flow to mu balanced circuit 24 charges, so that user wants can boost when the sleep pattern of touch-control system enters to mode of operation and discharges and recharges control signal and promote output voltage V out next time, to react rapidly user's touch-control.
Furthermore, the booster circuit 21 of the present embodiment can be implemented with various voltage conversion circuits.Fig. 2 A illustrates and uses the gloomy charge pump of level Four Dick to implement the booster circuit 21 of the present embodiment, and it can be described by following formula:
ΔV=VDD[C/(C+Cs)]-Io/[f*(C+Cs)]
Wherein Vk is the node voltage (k is 1 to 4) of every ㄧ level circuit, Δ V is the pressure reduction of every ㄧ level circuit, Vout is output voltage, VDD is pulse wave/oppositely logic high levle voltage (or low-tension supply) of pulse wave signal CK/CKB, f is pulse wave/oppositely frequency of pulse wave signal CK/CKB, Vth is transistorized critical voltage, C is the electric capacity of every ㄧ level circuit, Cs is the stray capacitance of every ㄧ node, Io is output current, wherein one part of current IC flow to mu balanced circuit 24, and another part electric current I Load is as load current.
In sum, when circuit for detecting 23 detects output voltage V out while not reaching voltage predetermined value Vref, Circuit tuning discharges and recharges control signal frequency to boost replaces the adjustment to output voltage V out of frequency that voltage stabilizing discharges and recharges control signal, and the frequency that discharges and recharges control signal of wherein boosting is the frequency that discharges and recharges control signal higher than voltage stabilizing.Furthermore, from above-mentioned mathematical relation, when frequency f increases, will make Δ V become large, therefore output voltage V out can rise rapidly.After output voltage V out reaches voltage predetermined value Vref, the frequency that Circuit tuning discharges and recharges control signal with voltage stabilizing replaces the adjustment of frequency to output voltage V out of boosting and discharging and recharging control signal.Known according to above-mentioned mathematical relation, when frequency f reduces, will make Δ V diminish, output voltage V out is compared to previously stably rising.
As shown in Figure 3A, be to adjust the schematic diagram of output voltage V out for touch-control system electric power controller 2 of the present invention utilizes Circuit tuning.From graphic, before output voltage V out reaches predetermined value Vref, to boost, discharge and recharge control signal CKH and adjust output voltage V out, and after output voltage V out reaches predetermined value Vref, with voltage stabilizing, discharge and recharge control signal CK and adjust output voltage V out, furthermore, when the frequency that discharges and recharges control signal CKH when boosting speeds, the charging curve that its charging curve CKH charges than the frequency that discharges and recharges control signal CK with voltage stabilizing, output voltage V out can rise more quickly.
In another embodiment of the present invention, boosting discharges and recharges control signal CKH and according to voltage stabilizing, discharges and recharges control signal CK and pulse pressure to discharge and recharge control signal (Insert pulse) and produce in conjunction with institute, and the frequency that wherein pulse pressure discharges and recharges control signal (Insert pulse) discharges and recharges the frequency of control signal CK higher than voltage stabilizing.Furthermore, Circuit tuning can be used a logic sum gate (OR GATE) (not graphic) to implement voltage stabilizing to discharge and recharge control signal CK and pulse pressure and discharge and recharge the combination of control signal (Insert pulse).When output voltage V out does not reach voltage predetermined value Vref, electric power controller 2 inputs that voltage stabilizing discharges and recharges control signal CK and pulse pressure discharges and recharges control signal (Insert pulse) to logic sum gate, to discharge and recharge control signal in conjunction with producing to boost.When output voltage V out reaches voltage predetermined value Vref, electric power controller 2 is cancelled input pulse pressure and is discharged and recharged control signal (Insert pulse) to logic sum gate, makes logic sum gate output voltage stabilizing discharge and recharge control signal CK.Similarly, to boost, discharge and recharge control signal CKH and voltage stabilizing and discharge and recharge control signal CK and adjust discharging and recharging that output voltage V out causes and change as described in above-mentioned formula, repeat no more.
As shown in Figure 3 B, be to adjust another schematic diagram of output voltage V out for touch-control system electric power controller 2 of the present invention utilizes Circuit tuning.The frequency that pulse pressure discharges and recharges control signal (Insert pulse) is the frequency that discharges and recharges control signal CK higher than voltage stabilizing, and discharge and recharge after frequency that the frequency of control signal CK and pulse pressure discharge and recharge control signal (Insert pulse) inputs to logic sum gate computing in voltage stabilizing, can obtain and higher than voltage stabilizing, discharge and recharge boosting of control signal CK and discharge and recharge control signal CKH frequency.In addition, take logic sum gate, implementing voltage stabilizing, to discharge and recharge the combination that control signal CK and pulse pressure discharge and recharge control signal (Insert pulse) be as one embodiment of the invention, and similar logical circuit also can be applicable to discharge and recharge control signal CK and pulse pressure in conjunction with voltage stabilizing, discharge and recharge control signal (Insert pulse) in the present invention.Similarly, when the frequency that discharges and recharges control signal CKH when boosting speeds, its charging curve CKH can rise more quickly than the charging curve that discharges and recharges control signal CK frequency upgrading output voltage V out with voltage stabilizing.
Referring to shown in Fig. 4 A, is the working state figure for touch-control system electric power controller 2 another embodiment of the present invention.Due to the error of processing procedure and temperature, capacitor C, stray capacitance Cs and the transistorized critical voltage Vth of each IC are not quite similar, thereby the slope difference that makes Vout increase, if therefore disconnect the electric connection of change-over switch SW and load circuit 23 to calculate the mode of set time, may cause mu balanced circuit 24 transition and charge and cause the output voltage V out on it to exceed transistorized disruptive voltage and burn the transistor 214 in booster circuit 21, as shown in curve 3.Or cause the electric connection of disconnecting consumers circuit 23 and change-over switch SW too late, by excessively of a specified duration the time that makes Touch Screen return to mode of operation by sleep pattern, as shown in curve 4.
Referring to shown in Fig. 4 B, is the working state figure for touch-control system electric power controller 2 another embodiment of the present invention.From the above, for improving, above-mentionedly transistor or duration of charging problem excessively of a specified duration may be burnt, a suitable voltage predetermined value Vref can be scheduled to.As shown in curve 5, when using chip 1(chip1) the output voltage V out that produces is while arriving voltage predetermined value Vref, after can being detected by circuit for detecting 22, by change-over switch SW, be electrically connected the output terminal 21t of load circuit 23 and booster circuit 21, make a part of current direction load circuit 23 of output current Io, to avoid burning the transistor of booster circuit 21, in addition, than the curve 1 of prior art, be also not interposing at the excessively slow problem of charging that has.Similarly, as shown in curve 6, when using chip 2(chip2) the output voltage V out that produces is while arriving voltage predetermined value Vref, after can being detected by circuit for detecting 22, by change-over switch SW, be electrically connected the output terminal 21t of load circuit 23 and booster circuit 21, make a part of output current Io of booster circuit 21 flow to load circuit 23, to avoid burning the transistor of booster circuit 21.
Referring to shown in Fig. 5, is the process flow diagram for the method for managing power supply of touch-control system of the present invention.The method for managing power supply of touch-control system comprises the following steps.In step S02, according to input voltage, voltage stabilizing, discharge and recharge control signal and boost and discharge and recharge control signal and promote the output voltage of booster circuit.In step S04, by circuit for detecting detecting output voltage, whether reach predetermined value.In step S06, before output voltage reaches predetermined value with afterwards, by Circuit tuning, discharge and recharge respectively control signal and voltage stabilizing to boost and discharge and recharge control signal and adjust output voltage, wherein boosting discharges and recharges control signal the lifting of output voltage is discharged and recharged to control signal faster than voltage stabilizing.In step S08, by load circuit, receive the output voltage that arrives predetermined value.
In sum, method for managing power supply more comprises that by mu balanced circuit 24, reducing this output voltage V out produces ripples wave amplitude.In an embodiment of the present invention, mu balanced circuit 24 is to be external capacitive Cext.Method for managing power supply more comprises by switch SW, disconnects the electric connection of booster circuit 21 and load circuit 23 before output voltage V out reaches predetermined value Vref.Switch SW is after output voltage V out reaches predetermined value Vref, is electrically connected booster circuit 21, with the output voltage V out that receives booster circuit 21 to load circuit 23.
In one embodiment of this invention, the frequency that discharges and recharges control signal of boosting is the frequency that discharges and recharges control signal higher than voltage stabilizing.In another embodiment of the present invention, boost discharge and recharge control signal be according to voltage stabilizing discharge and recharge control signal and a pulse pressure discharge and recharge control signal be combined produce, the frequency that wherein pulse pressure discharges and recharges control signal discharges and recharges control signal higher than voltage stabilizing.
In sum, in one embodiment of the invention, voltage stabilizing discharges and recharges control signal, and to discharge and recharge control signal with pulse pressure be to be combined with logic sum gate, but not as limit.In addition, booster circuit 21 comprises charge pump, and charge pump comprises the gloomy charge pump of Dick.Similar principle electric power controller described above, repeats no more in this.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (27)
1. an electric power controller for touch-control system, is characterized in that:
Booster circuit, according to input voltage, voltage stabilizing discharge and recharge control signal with boost discharge and recharge control signal promote output voltage;
Circuit for detecting, detects this output voltage and whether reaches predetermined value;
Circuit tuning, according to the detecting result of this circuit for detecting, before this output voltage reaches this predetermined value and afterwards, boosts and discharges and recharges control signal and this voltage stabilizing and discharge and recharge control signal and adjust this output voltage with this respectively; Wherein this boosts and discharges and recharges control signal the adjustment of this output voltage is discharged and recharged to control signal faster than this voltage stabilizing; And
Load circuit, according to the adjustment result of this Circuit tuning, receives this output voltage that arrives this predetermined value.
2. electric power controller according to claim 1, is characterized in that more comprising mu balanced circuit, in order to reduce this output voltage, produces ripples wave amplitude.
3. electric power controller according to claim 2, is characterized in that this mu balanced circuit is is storage capacitors.
4. electric power controller according to claim 1, is characterized in that more comprising switch, is the front disconnection that reaches this predetermined value in this output voltage, the electric connection of this booster circuit and this load circuit.
5. electric power controller according to claim 1, is characterized in that this switch is after this output voltage reaches this predetermined value, is electrically connected this booster circuit, with this output voltage of receiving this booster circuit to this load circuit.
6. electric power controller according to claim 1, is characterized in that this frequency of discharging and recharging control signal of boosting discharges and recharges the frequency of control signal higher than this voltage stabilizing.
7. electric power controller according to claim 1, it is characterized in that this boost discharge and recharge control signal be according to this voltage stabilizing discharge and recharge control signal and pulse pressure discharge and recharge control signal be combined produce, the frequency that wherein this pulse pressure discharges and recharges control signal discharges and recharges control signal higher than this voltage stabilizing.
8. electric power controller according to claim 7, it is characterized in that this voltage stabilizing discharging and recharging control signal, to discharge and recharge control signal with this pulse pressure be to be combined with logic sum gate.
9. electric power controller according to claim 1, is characterized in that this booster circuit comprises charge pump.
10. electric power controller according to claim 9, is characterized in that this charge pump comprises the gloomy charge pump of Dick.
11. electric power controllers according to claim 1, is characterized in that this circuit for detecting is is comparer.
12. electric power controllers according to claim 1, is characterized in that this load circuit is is drive signal generation circuit.
13. electric power controllers according to claim 1, is characterized in that this touch-control system is for mobile phone, computing machine or has the electronic system of Touch Screen.
14. electric power controllers according to claim 13, this predetermined value that it is characterized in that this output voltage is the reference voltage for this touch-control system.
15. electric power controllers according to claim 13, this predetermined value that it is characterized in that this output voltage is for producing according to the preset frequency of this touch-control system.
16. electric power controllers according to claim 13, is characterized in that this booster circuit comprises most transistors, and this majority transistor one of them be this storage capacitors of electric connection.
17. electric power controllers according to claim 16, this predetermined value that it is characterized in that this output voltage is between this transistorized disruptive voltage that is electrically connected this storage capacitors, and between the operating voltage of this touch-control system.
The method for managing power supply of 18. 1 kinds of touch-control systems, is characterized in that it comprises:
According to input voltage, voltage stabilizing, discharge and recharge control signal and boost and discharge and recharge the output voltage of control signal lifting booster circuit;
By circuit for detecting, detect this output voltage and whether reach predetermined value
Before this output voltage reaches this predetermined value with afterwards, by Circuit tuning, boost and discharge and recharge control signal and this voltage stabilizing and discharge and recharge control signal and adjust this output voltage respectively with this, wherein this boosts and discharges and recharges control signal the lifting of this output voltage is discharged and recharged to control signal faster than this voltage stabilizing; And
By load circuit, receive this output voltage that arrives this predetermined value.
19. method for managing power supply according to claim 18, is characterized in that more comprising that by mu balanced circuit, reducing this output voltage produces ripples wave amplitude.
20. method for managing power supply according to claim 19, is characterized in that described method for managing power supply, and this mu balanced circuit is to be external capacitive.
21. method for managing power supply according to claim 18, is characterized in that more comprising by switch, disconnect the electric connection of this booster circuit and this load circuit before this output voltage reaches this predetermined value.
22. method for managing power supply according to claim 21, is characterized in that this switch is after this output voltage reaches this predetermined value, are electrically connected this booster circuit, with this output voltage of receiving this booster circuit to this load circuit.
23. method for managing power supply according to claim 18, is characterized in that this frequency of discharging and recharging control signal of boosting discharges and recharges the frequency of control signal higher than this voltage stabilizing.
24. method for managing power supply according to claim 18, it is characterized in that this boost discharge and recharge control signal be according to this voltage stabilizing discharge and recharge control signal and pulse pressure discharge and recharge control signal be combined produce, the frequency that wherein this pulse pressure discharges and recharges control signal discharges and recharges control signal higher than this voltage stabilizing.
25. method for managing power supply according to claim 24, it is characterized in that this voltage stabilizing discharging and recharging control signal, to discharge and recharge control signal with this pulse pressure be to be combined with logic sum gate.
26. method for managing power supply according to claim 18, is characterized in that this booster circuit comprises charge pump.
27. method for managing power supply according to claim 26, is characterized in that this charge pump comprises the gloomy charge pump of Dick.
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| CN201210384331.0A CN103729045B (en) | 2012-10-11 | 2012-10-11 | The electric power controller of touch-control system and method for managing power supply |
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| CN201210384331.0A CN103729045B (en) | 2012-10-11 | 2012-10-11 | The electric power controller of touch-control system and method for managing power supply |
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| CN103729045B CN103729045B (en) | 2016-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019202A (en) * | 2020-07-14 | 2020-12-01 | 海速芯(无锡)科技有限公司 | Double-wire system capacitance type detection power-saving structure and power-saving method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010004717A (en) * | 2008-06-23 | 2010-01-07 | Toshiba Corp | Constant-voltage boost power supply |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010004717A (en) * | 2008-06-23 | 2010-01-07 | Toshiba Corp | Constant-voltage boost power supply |
| US7928796B2 (en) * | 2008-06-23 | 2011-04-19 | Kabushiki Kaisha Toshiba | Constant voltage boost power supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019202A (en) * | 2020-07-14 | 2020-12-01 | 海速芯(无锡)科技有限公司 | Double-wire system capacitance type detection power-saving structure and power-saving method |
| CN112019202B (en) * | 2020-07-14 | 2024-03-22 | 海速芯(杭州)科技有限公司 | Dual-wire capacitive detection power saving architecture and power saving method |
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| CN103729045B (en) | 2016-08-10 |
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