CN201741095U - Signal state transition circuit, reset circuit and electronic equipment - Google Patents
Signal state transition circuit, reset circuit and electronic equipment Download PDFInfo
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- CN201741095U CN201741095U CN2010202038462U CN201020203846U CN201741095U CN 201741095 U CN201741095 U CN 201741095U CN 2010202038462 U CN2010202038462 U CN 2010202038462U CN 201020203846 U CN201020203846 U CN 201020203846U CN 201741095 U CN201741095 U CN 201741095U
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Abstract
The utility model provides a signal state transition circuit, a reset circuit and electronic equipment, which belongs to the technical field of electronics, and solves the technical problem in the prior art that the operation is troublesome to turning on electronic equipment manually when the operation that the electronic equipment is turned on automatically is unsuccessful. The signal state transition circuit comprises a first signal input terminal, a second signal input terminal and a signal transition module, wherein, the signal transition module is used for receiving first signals input from the first signal input terminal and second signals input from the second signal input terminal and comprises a first triode, a second triode and a capacitor. The reset circuit comprises a power supply start-up module, an equipment power supply, a start-up module control terminal and the signal state transition circuit disclosed by the utility model. The electronic equipment comprises a control module, a memory module, an automatic starting-up control circuit and the reset circuit disclosed by the utility model. The utility model can be applied to electronic equipment with automatic starting up function.
Description
Technical field
The utility model relates to electronic technology field, the electronic equipment that is specifically related to a kind of signal condition change-over circuit, reset circuit and is provided with this reset circuit.
Background technology
Along with the develop rapidly of electronic technology, the function of various electronic equipments from strength to strength, the application of Auto Power On function on electronic equipment is more and more wider.
The Auto Power On function is meant that the user can be provided with the on time of electronic equipment, makes the electronic equipment that is in off-mode at the official hour Auto Power On.
Existing electronic equipment with Auto Power On function, comprise master chip, memory module, Auto Power On control circuit, power initiation module and device power supply (DPS), the memory module internal memory contains system software and data, and wherein: master chip links to each other with Auto Power On control circuit, memory module respectively;
The Auto Power On control circuit is used in the predefined time of user the power initiation module being imported the Auto Power On control signal, the power consumption of Auto Power On control circuit is very little, and inside is provided with independent power supply, and during the electronic equipment shutdown, the Auto Power On control circuit still keeps duty;
The power initiation module can send enabled instruction to device power supply (DPS) after receiving the Auto Power On control signal;
After device power supply (DPS) started, master chip can read from memory module, loading system software or data.
When master chip reads from memory module, after the success of loading system software and data, electronic equipment just enters open state.
Because electronic equipment is in start process, master chip reads, the problem that reading of data is made mistakes occurs through regular meeting when loading system software or data from memory module, reads, makeing mistakes in loading system software or the data procedures directly to cause the Auto Power On failure.
The problem that above-mentioned Auto Power On is failed appears in the electronic equipment that has the Auto Power On function for solution, the following two kinds of methods of main employing are remedied in the prior art: a kind of method is that a reset key is set on electronic equipment, when Auto Power On is failed, by the method for pushing reset key manually force that master chip reads again, loading system software or data; Another kind method is Auto Power On when failure, behind the electric power system deenergization with electronic equipment, connects with the mains again more manually, after connecting with the mains again the master chip of electronic equipment can read again, loading system software or data.Since the master chip of electronic equipment again from memory module read, loading system software or data probability of errors be few after all, so can start shooting again by above these two kinds of manual operation methods in the prior art.In realizing process of the present utility model, the inventor finds that there are the following problems at least in the prior art: in the prior art, in the process of electronic equipment Auto Power On, master chip reads in storer, loading system software or data are made mistakes when causing the failure of electronic equipment Auto Power On, need push reset key manually, perhaps, need the artificial electric power system that disconnects electronic equipment to connect electric power system afterwards more again, more than these two kinds of manual operation methods all need to operate manually, it is cumbersome to operate.
The utility model content
The utility model embodiment provides a kind of signal condition change-over circuit on the one hand, a kind of reset circuit that is provided with this signal condition change-over circuit also is provided on the other hand, a kind of electronic equipment that is provided with this reset circuit also is provided on the one hand again, after having solved in the prior art failure of electronic equipment Auto Power On, use the manual methods start to have the technical matters of troublesome poeration.For achieving the above object, embodiment of the present utility model adopts following technical scheme: the signal condition change-over circuit that the utility model embodiment provides, comprise first signal input part, secondary signal input end and signal conversion module, wherein: described signal conversion module is used to receive first signal from described first signal input part input, the secondary signal that reception is imported from described secondary signal input end; Described signal conversion module comprises first triode, second triode and electric capacity, wherein: the collector of described first triode links to each other with described first signal input part respectively, its grounded emitter, its base stage link to each other with the anodal and described secondary signal input end of the collector of described second triode, described electric capacity respectively successively; The grounded emitter of described second triode, its base stage and ground connection after the negative pole of described electric capacity is in parallel.The utility model embodiment provides can produce following at least technique effect in the technique scheme:
Because in the utility model embodiment signal condition change-over circuit, when first signal from the input of first signal input part is that first state is a high level state, from the secondary signal of secondary signal input end input is that the third state is when being high level state, after signal conversion module can postpone a period of time, with first conversion of signals of first state is that second state is a low level state, simultaneously, when the secondary signal of secondary signal input end no signal input or input is that four condition is when being low level state, it is first state from second state exchange that signal conversion module in the signal condition change-over circuit can make from first signal of first signal input part input, so, when first signal from the input of first signal input part is first state, can in the present embodiment by whether to the method for secondary signal input end input signal or the state by the control secondary signal, the state of controlling first signal is first state, still second state.
The reset circuit that the utility model embodiment provides comprises the described signal condition change-over circuit that power initiation module, device power supply (DPS), startup module controls end and above-mentioned the utility model embodiment provide, wherein:
Described power initiation module links to each other with described device power supply (DPS), described startup module controls end, described first signal input part and described secondary signal input end respectively; Described power initiation module is used to receive by described first signal of described first signal input part input, be used to receive the 3rd signal by described startup module controls end input.
The utility model embodiment provides can produce following at least technique effect in the technique scheme:
Because in the utility model embodiment reset circuit, when first signal by first signal input part input is that first state is high level state or is that the 5th state is when being high level state by the 3rd signal that starts the input of module controls end, the power initiation module makes device power supply (DPS) be held open state or opertaing device electric power starting and generates the secondary signal that the third state is a high level state, and, when no signal is that second state is a low level state by first signal input part input power initiation module or first signal by the input of first signal input part, and no signal is by starting module controls end input power initiation module or being that the 6th state is when being low level state by the 3rd signal that starts the input of module controls end, the secondary signal that four condition is a low level state can be closed or generate to the power initiation module, so whether can pass through in the present embodiment to first signal input part, start module controls end input signal or the state by control first signal and the 3rd signal, just can reach the opertaing device power supply and be held open state or the purpose of closing.
The electronic equipment that the utility model embodiment provides, comprise the reset circuit that control module, memory module, Auto Power On control circuit and above-mentioned the utility model embodiment provide, wherein: described control module links to each other with described Auto Power On control circuit, described startup module controls end and described memory module respectively.Compared with prior art, the utility model embodiment provides can produce following at least technique effect in above-mentioned arbitrary technical scheme: because the Auto Power On control circuit can be imported first signal that first state is a high level state to first signal input part in the predefined time of user in the electronic equipment that the utility model embodiment is provided, and when first signal by the input of first signal input part was first state, power initiation module meeting opertaing device electric power starting also generated the secondary signal that the third state is a high level state; Because after signal conversion module can postpone a period of time, with first conversion of signals of first state is that second state is a low level state, in this a period of time, device power supply (DPS) starts, simultaneously, after control module just can or start successfully in the device power supply (DPS) start-up course, from memory module read, loading system software or data, how long this a period of time is specially, and can be provided with according to the size of the data volume of the actual power loss of electronic equipment and system software or data; In this a period of time, device power supply (DPS) starts success and control module reads if work as, when electronic equipment is started shooting successfully when loading system software and data success, control module can be imported the 3rd signal that the 5th state is a high level state to starting the module controls end, at this moment, the power initiation module makes equipment be held open state, because electronic equipment start success, first signal of no matter importing from first signal input part is first state or second state, the power initiation module is closed, so in the case, device power supply (DPS) can normally move, and can enter and keep normal operating conditions after electronic equipment is started shooting successfully; And in this a period of time, if device power supply (DPS) starts failure or control module reads, when loading system software or data failure are the electronic equipment boot failure, control module can stop output signal or import the 3rd signal that the 6th state is a low level state to starting the module controls end, when after this a period of time, signal conversion module can be second state with first conversion of signals of first state, at this moment, because first signal by the input of first signal input part is second state, and no signal is the 6th state by the 3rd signal that starts module controls end input power initiation module or import by startup module controls end, so the secondary signal that four condition is a low level state is closed or generated to the power initiation module, just no signal input secondary signal input end when the power initiation module is closed, simultaneously, because when the secondary signal of input of secondary signal input end no signal or input is four condition, it is first state from second state exchange that signal conversion module can make from first signal of first signal input part input, when first signal by the input of first signal input part is first state, the power initiation module is the opertaing device electric power starting once more, and generate the secondary signal of the third state once more, because this moment, from first signal of first signal input part input is first state, and from the secondary signal of secondary signal input end input is the third state, after so signal conversion module can postpone a period of time once more, first conversion of signals with first state is second state once more, in a period of time that signal conversion module postpones once more, if device power supply (DPS) starts failure once more or control module reads, when loading system software or data are failed once more, above process can come again again once more, reads until device power supply (DPS) startup success and control module, loading system software and data success; Therefore, after the electronic equipment Auto Power On is failed among the utility model embodiment, reset circuit in it can make electronic equipment Auto Power On again once more, compare with two kinds of manual operation methods that provided in the prior art, the utility model embodiment need not to operate manually, automaticity is higher, so after having solved in the prior art failure of electronic equipment Auto Power On, use the manual methods start to have the technical matters of troublesome poeration; In addition, since among the utility model embodiment in the electronic equipment reset circuit make electronic equipment again Auto Power On finish automatically, need not the user and go to judge in person whether electronic equipment starts shooting, so can in the very first time after the Auto Power On failure, electronic equipment be started shooting again, avoided to be in off-mode after the failure of electronic equipment Auto Power On in the prior art always, can find just that when the user need use electronic equipment the problem of electronic equipment Auto Power On failure takes place.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The inner structure synoptic diagram of the signal condition change-over circuit that Fig. 1 provides for the utility model embodiment;
A kind of concrete enforcement circuit of the signal condition change-over circuit that Fig. 2 provides for the utility model embodiment and the synoptic diagram of the annexation between the power initiation module;
The annexation synoptic diagram of inner each parts of the reset circuit that Fig. 3 provides for the utility model embodiment;
The annexation synoptic diagram of each parts of electronic equipment internal that Fig. 4 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not paying creative work belongs to the scope that the utility model is protected.
It is a kind of after the failure of electronic equipment Auto Power On that the utility model embodiment provides, need not to operate manually just to make electronic equipment Auto Power On once more, and automaticity is than higher signal condition change-over circuit, a kind of reset circuit and a kind of electronic equipment that is provided with this reset circuit that is provided with this signal condition change-over circuit.
As shown in Figure 1, the signal condition change-over circuit that the utility model embodiment is provided comprises first signal input part 1, secondary signal input end 2 and signal conversion module 3, wherein:
The state of first signal comprises first state and second state, and the state of secondary signal comprises the third state and four condition;
When first signal from the input of first signal input part 1 is first state, when the secondary signal of secondary signal input end 2 inputs is the third state, after signal conversion module 3 can postpone a period of time, be second state with first conversion of signals of first state;
When the secondary signal of input of secondary signal input end 2 no signals or input was four condition, it was first state from second state exchange that signal conversion module 3 can make from first signal of first signal input part, 1 input.
Because in the utility model embodiment signal condition change-over circuit, when first signal from 1 input of first signal input part is first state, when the secondary signal of secondary signal input end 2 input is the third state, after signal conversion module 3 can postpone a period of time, with first conversion of signals of first state is second state, simultaneously, when the secondary signal of input of secondary signal input end 2 no signals or input is four condition, it is first state from second state exchange that signal conversion module 3 in the signal condition change-over circuit can make from first signal of first signal input part, 1 input, so, when first signal from 1 input of first signal input part is first state, can in the present embodiment by whether to the method for secondary signal input end 2 input signals or the state by the control secondary signal, the state of controlling first signal is first state, still second state.
First signal is a digital signal, and first state is a high level state, and second state is a low level state.Secondary signal is a digital signal, and the third state is a high level state, and four condition is a low level state.
The digital signal antijamming capability is strong, noiseless accumulates, when transmitting data or instruction, be difficult for distortion, and the state of digital signal is convenient to switch.High level state, low level state are two kinds of basic status of digital signal, are convenient to identification.Certainly, first signal and/or secondary signal also can be simulating signal or other signals in the present embodiment, simulating signal is meant the information of representing with the continually varying physical quantity, the amplitude of its signal or phase place intercropping at any time change continuously, and first state and second state or the third state and four condition can be the signal of two kinds of different Changing Patterns of the amplitude of simulating signal or phase place.
Certainly, first signal can be identical with the signal format of secondary signal in the present embodiment, also can be different, when the signal format of first signal and secondary signal is identical, first state or second state can be wherein arbitrary identical with the third state, four condition, also can be different.First signal and secondary signal preferably are digital signal in the present embodiment, first state and the third state are preferably high level state, second state and four condition are preferably low level state, at this moment, because first signal is identical with the secondary signal form, and state is identical, not only is convenient to control, and is convenient to select for use similar electron device.
As shown in Figure 2, signal conversion module 3 comprises the first triode Q1, the second triode Q2 and electric capacity E in the present embodiment, wherein:
The collector of the first triode Q1 links to each other with first signal input part 1 respectively, its grounded emitter, and its base stage links to each other with the collector of the second triode Q2, positive pole and the secondary signal input end 2 of electric capacity E respectively successively;
The grounded emitter of the second triode Q2, its base stage and ground connection after the negative pole of electric capacity E is in parallel.
First signal when first signal input part, 1 input, first state, when being the digital signal of input high level state, the collector of the first triode Q1 is initially high level state, if this moment, when the signal of input of secondary signal input end 2 no signals or input is the secondary signal of four condition, the first triode Q1 is a cut-off state, the collector of the first triode Q1 is still high level state, if this moment, when the signal of secondary signal input end 2 inputs was the digital signal of high level state when the signal of secondary signal input end 2 input was the secondary signal of the third state, under the delayed-action of electric capacity E, the base stage that the secondary signal of the third state just can enter the first triode Q1 after postponing a period of time, so after postponing a period of time, the first triode Q1 conducting, because the grounded emitter of the first triode Q1, at this moment, first signal input part, 1 ground connection, from being converted to second state after first signal of first state of first signal input part 1 input is high level digital signal ground connection is low level state, then, if be that the secondary signal of four condition is when being the digital signal of low level state no longer to the signal of secondary signal input end 2 any signals of input or input, the base potential step-down of the first triode Q1, reenter cut-off state, first signal input part 1 disconnects with ground, and first signal of importing from first signal input part 1 is that first state promptly is converted to high level state from low level state from second state exchange again.
Be connected with first resistance R 1 between the base stage of the first triode Q1 and its emitter.When first resistance R 1 can be avoided the overtension of secondary signal the first triode Q1 is caused damage, and then can play the effect of the protection first triode Q1, simultaneously, also secondary signal is had certain carryover effects.
Be connected with between the collector of the second triode Q2 and the secondary signal input end 2 between the negative pole of the base stage of second resistance R, 2, the second triode Q2 and electric capacity E and be connected with the 3rd resistance R 3, the negative pole of electric capacity E is by the 4th resistance R 4 ground connection.Second resistance R 2, the 3rd resistance R 3 and 4 couples second triode Q2 of the 4th resistance R can play a protective role, and simultaneously, also secondary signal are had certain carryover effects.
Electric capacity E is an electrochemical capacitor.Very big, the specified capacity of the electric capacity of electrochemical capacitor unit volume can be accomplished very big and cheap, electric capacity is big more then can be more obvious to the carryover effects of secondary signal, time delay can be longer, so can come the length of control lag time in the present embodiment by the electric capacity that uses different capabilities.Certainly, also can use other electric capacity outside the electrochemical capacitor in the present embodiment, as long as capacitance meets the requirements.
The signal condition change-over circuit also can use other hardware to realize in the present embodiment, for example can use other electron devices to replace electron devices such as above disclosed triode, electric capacity.
Certainly, the signal condition change-over circuit also can use software to realize, one of ordinary skill in the art will appreciate that and realize that the signal condition change-over circuit also can instruct relevant hardware to finish by program in the present embodiment, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
As shown in Figures 2 and 3, the reset circuit that the utility model embodiment is provided comprises the signal condition change-over circuit that power initiation module 4, device power supply (DPS) 5, startup module controls end 6 and above-mentioned the utility model embodiment provide, wherein:
The state of the 3rd signal comprises the 5th state and the 6th state;
When first signal by the input of first signal input part 1 is first state or when being the 5th state by the 3rd signal that starts 6 inputs of module controls end, power initiation module 4 makes device power supply (DPS) 5 be held open the secondary signal that the third state was opened and generated to state or opertaing device power supply 5;
When no signal is second state by first signal input part 1 input power initiation module 4 or first signal by 1 input of first signal input part, and when no signal was the 6th state by startup module controls end 6 input power initiation modules 4 or by the 3rd signal that starts 6 inputs of module controls end, the secondary signal of four condition is closed or generated to power initiation module 4.
Because in the utility model embodiment reset circuit, when first signal by the input of first signal input part 1 is first state or when being the 5th state by the 3rd signal that starts 6 inputs of module controls end, power initiation module 4 makes device power supply (DPS) 5 be held open state or opertaing device power supply 5 is opened and the secondary signal of the generation third state, and, when no signal is second state by first signal input part 1 input power initiation module 4 or first signal by 1 input of first signal input part, and when no signal is the 6th state by startup module controls end 6 input power initiation modules 4 or by the 3rd signal that starts 6 inputs of module controls end, the secondary signal of four condition can be closed or generate to power initiation module 4, so whether can pass through in the present embodiment to first signal input part 1, start module controls end 6 input signals or the state by control first signal and the 3rd signal, just can reach opertaing device power supply 5 and be held open state or the purpose of closing.
The 3rd signal is a digital signal, and the 5th state is a high level state, and the 6th state is a low level state.
With first signal, secondary signal in like manner, the digital signal antijamming capability is strong, when noiseless accumulation, transmission data or instruction, be difficult for distortion, and the state of digital signal is convenient to switch.High level state, low level state are two kinds of basic status of digital signal, are convenient to identification.Certainly, the 3rd signal also can be simulating signal or other signals in the present embodiment, simulating signal is meant the information of representing with the continually varying physical quantity, the amplitude of its signal or phase place intercropping at any time change continuously, and the 5th state and the 6th state can be the signal of two kinds of different Changing Patterns of the amplitude of simulating signal or phase place.
As Fig. 2 and shown in Figure 4, the electronic equipment that the utility model embodiment provides, comprise the reset circuit that control module 7, memory module 8, Auto Power On control circuit 9 and above-mentioned the utility model embodiment provide, memory module 8 stores system software and data, wherein:
Control module 7 links to each other with Auto Power On control circuit 9, startup module controls end 6 and memory module 8 respectively;
Auto Power On control circuit 9 is used for first signal to first signal input part, 1 input, first state in the predefined time of user;
Control module 7 is used for after device power supply (DPS) 5 starts, from memory module 8 read, loading system software or data;
When device power supply (DPS) in a period of time 5 start successes and control module 7 reads, when loading system software and data success, 7 pairs of control modules start the 3rd signal of module controls end 6 inputs the 5th state;
When device power supply (DPS) in a period of time 5 start failure or control module 7 reads, when loading system software or data failure, control module 7 stops output signal or to starting the 3rd signal of module controls end 6 inputs the 6th state.
Because Auto Power On control circuit 9 can be imported first signal of first state in the predefined time of user in the electronic equipment that the utility model embodiment is provided to first signal input part 1, and when first signal by 1 input of first signal input part was first state, the secondary signal of the third state is opened and generated to power initiation module 4 meeting opertaing device power supplys 5; Because after signal conversion module 3 can postpone a period of time, with first conversion of signals of first state is second state, in this a period of time, device power supply (DPS) 5 starts, simultaneously, after control module 7 just can or start successfully in device power supply (DPS) 5 start-up courses, from memory module 8 read, loading system software or data, how long this a period of time is specially, and can be provided with according to the size of the data volume of the actual power loss of electronic equipment and system software or data;
In this a period of time, device power supply (DPS) 5 starts successes and control module 7 reads if work as, when electronic equipment is started shooting successfully when loading system software and data success, control module 7 can be to starting the 3rd signal of module controls end 6 inputs the 5th state, at this moment, power initiation module 4 makes equipment be held open state, because electronic equipment start success, first signal of no matter importing from first signal input part 1 is first state or second state, power initiation module 4 is closed, so in the case, device power supply (DPS) 5 can normally move, and can enter and keep normal operating conditions after electronic equipment is started shooting successfully;
And in this a period of time, if device power supply (DPS) 5 starts failure or control module 7 reads, when loading system software or data failure during the electronic equipment boot failure, control module 7 can stop output signal or import the 3rd signal of the 6th state to starting module controls end 6, when after this a period of time, signal conversion module 3 can be second state with first conversion of signals of first state
At this moment, because first signal by 1 input of first signal input part is second state, and no signal is the 6th state by the 3rd signal that starts module controls end 6 input power initiation modules 4 or import by startup module controls end 6, so the secondary signal of four condition is closed or generated to power initiation module 4, just no signal input secondary signal input end 2 when power initiation module 4 is closed, simultaneously, because when the secondary signal of input of secondary signal input end 2 no signals or input is four condition, it is first state from second state exchange that signal conversion module 3 can make from first signal of first signal input part, 1 input, when first signal by 1 input of first signal input part is first state, power initiation module 4 opertaing device power supply 5 is once more opened, and generate the secondary signal of the third state once more, because this moment, from first signal of first signal input part, 1 input is first state, and from the secondary signal of secondary signal input end 2 inputs is the third state, after so signal conversion module 3 can postpone a period of time once more, first conversion of signals with first state is second state once more, in a period of time that signal conversion module 3 postpones once more, if device power supply (DPS) 5 starts failure once more or control module 7 reads, when loading system software or data are failed once more, above process can come again again once more, reads until device power supply (DPS) 5 startup successes and control module 7, loading system software and data success;
Therefore, after the electronic equipment Auto Power On is failed among the utility model embodiment, reset circuit in it can make electronic equipment Auto Power On again once more, compare with two kinds of manual operation methods that provided in the prior art, the utility model embodiment need not to operate manually, automaticity is higher, so after having solved in the prior art failure of electronic equipment Auto Power On, use the manual methods start to have the technical matters of troublesome poeration;
In addition, since among the utility model embodiment in the electronic equipment reset circuit make electronic equipment again Auto Power On finish automatically, need not the user and go to judge in person whether electronic equipment starts shooting, so can in the very first time after the Auto Power On failure, electronic equipment be started shooting again, avoided to be in off-mode after the failure of electronic equipment Auto Power On in the prior art always, can find just that when the user need use electronic equipment the problem of electronic equipment Auto Power On failure takes place.
As Fig. 2 and shown in Figure 4, also be connected with the first diode D1 in the present embodiment between first signal input part 1 and the power initiation module 4, also be connected with the second diode D2 between control module 7 and the startup module controls end 6.First signal is imported first signal input part, 1, the three signal through the first diode D1, and input starts module controls end 6 through the second diode D2.First signal, the 3rd signal that the first diode D1 and the second diode D2 are respectively applied for input carry out rectification, guarantee that first signal, the 3rd signal are the pulse direct current of single direction, improve the transmission precision of signal, simultaneously, the amplitude of first signal, the 3rd signal is limited in certain this scope, avoid signal potential too high and electron device is caused damage, thereby improve the reliability of whole electric equipment.
As further improvement of this embodiment, in the present embodiment device power supply (DPS) 5 start successes and control module 7 reads, when loading system software and data success, first signal or control Auto Power On control circuit 9 that control module 7 also is used to control 9 pairs first signal input parts of Auto Power On control circuit, 1 input, second state stop first signal input part, 1 input signal.At this moment, start is success, so Auto Power On control circuit 9 need not first signal to first signal input part, 1 input, second state, and control module 7 control Auto Power On control circuits 9 stop to first signal input part, 1 input signal or only during the digital signal of input low level state, can save the spent electric energy of Auto Power On control circuit 9.
Control module 7 is the master chip of electronic equipment.Master chip is the core devices in the electronic equipment, the strongest electron device of data-handling capacity in the electronic equipment normally, and data-handling capacity is strong more when then controlling the utility model reset circuit, and speed is faster.Certainly, control module 7 also can be other chips in the electronic equipment or the device with data-handling capacity in the present embodiment.
Memory module 8 is the Nand-flash storer, and the Nand-flash storer is a kind of of flash internal memory, and the non-linear macroelement pattern of its inner employing has advantage with low cost.
Electronic equipment is preferably portable terminals such as hand held television, mobile phone or palm PC in the present embodiment.Portable terminals such as hand held television, mobile phone or palm PC all have the Auto Power On function usually, and employed storer mostly is the Nand-flash storer usually, the problem of data transmission fault takes place between Nand-flash storer and the master chip easily, thereby cause the Auto Power On failure, so the technical scheme that suitable application the utility model embodiment is provided.
Certainly, the reset circuit that the utility model embodiment is provided can also be applied to have on other electronic equipments or electronic installation outside the portable terminal of Auto Power On function, and for example: air-conditioning etc. have the large scale electronic equipment of Auto Power On function or the device with Auto Power On function in the large scale electronic equipment.
Claims (6)
1. a signal condition change-over circuit is characterized in that, comprises first signal input part, secondary signal input end and signal conversion module, wherein:
Described signal conversion module is used to receive first signal from described first signal input part input, the secondary signal that reception is imported from described secondary signal input end;
Described signal conversion module comprises first triode, second triode and electric capacity, wherein:
The collector of described first triode links to each other with described first signal input part respectively, its grounded emitter, and its base stage links to each other with the anodal and described secondary signal input end of the collector of described second triode, described electric capacity respectively successively;
The grounded emitter of described second triode, its base stage and ground connection after the negative pole of described electric capacity is in parallel.
2. signal condition change-over circuit according to claim 1 is characterized in that, is connected with first resistance between the base stage of described first triode and its emitter.
3. a reset circuit is characterized in that, comprises power initiation module, device power supply (DPS), startup module controls end and aforesaid right requirement 1 described signal condition change-over circuit, wherein:
Described power initiation module links to each other with described device power supply (DPS), described startup module controls end, described first signal input part and described secondary signal input end respectively;
Described power initiation module is used to receive by described first signal of described first signal input part input, be used to receive the 3rd signal by described startup module controls end input.
4. reset circuit according to claim 3 is characterized in that, is connected with first resistance between the base stage of described first triode and its emitter.
5. an electronic equipment is characterized in that, comprises control module, memory module, Auto Power On control circuit and aforesaid right requirement 3 or 4 described reset circuits, wherein:
Described control module links to each other with described Auto Power On control circuit, described startup module controls end and described memory module respectively.
6. electronic equipment according to claim 5 is characterized in that, described control module is the master chip of described electronic equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202038462U CN201741095U (en) | 2010-05-26 | 2010-05-26 | Signal state transition circuit, reset circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202038462U CN201741095U (en) | 2010-05-26 | 2010-05-26 | Signal state transition circuit, reset circuit and electronic equipment |
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| Publication Number | Publication Date |
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| CN201741095U true CN201741095U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202038462U Expired - Lifetime CN201741095U (en) | 2010-05-26 | 2010-05-26 | Signal state transition circuit, reset circuit and electronic equipment |
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| Country | Link |
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| CN (1) | CN201741095U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621908A (en) * | 2012-04-01 | 2012-08-01 | 杭州晟元芯片技术有限公司 | High-reliability low-consumption control circuit and control method |
| CN103235750A (en) * | 2013-04-12 | 2013-08-07 | 深圳市杰和科技发展有限公司 | Unattended control system and method for computer |
| WO2016145774A1 (en) * | 2015-03-18 | 2016-09-22 | 中兴通讯股份有限公司 | Electronic equipment start-up method and device |
-
2010
- 2010-05-26 CN CN2010202038462U patent/CN201741095U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102621908A (en) * | 2012-04-01 | 2012-08-01 | 杭州晟元芯片技术有限公司 | High-reliability low-consumption control circuit and control method |
| CN103235750A (en) * | 2013-04-12 | 2013-08-07 | 深圳市杰和科技发展有限公司 | Unattended control system and method for computer |
| CN103235750B (en) * | 2013-04-12 | 2016-09-14 | 深圳市杰和科技发展有限公司 | A kind of unmanned computerized control system and method |
| WO2016145774A1 (en) * | 2015-03-18 | 2016-09-22 | 中兴通讯股份有限公司 | Electronic equipment start-up method and device |
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Granted publication date: 20110209 |
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| CX01 | Expiry of patent term |