The energy-saving control circuit of embedded system
Technical field
The utility model relates to a kind of embedded system control technology, especially relates to a kind of energy-saving control circuit of embedded system.
Background technology
Along with the development of modern science and technology, embedded system is widely used in all trades and professions, has been widely used at present in battery power supply system.Embedded system is as the core of battery power supply system, and whether the battery of controlling in battery power supply system is powered or how to be powered, and the quality of its performance directly affects the continued power ability of battery power supply system.
In existing battery power supply system, embedded system is conventionally controlled battery according to the input signal receiving and is entered duty or holding state, even but when embedded system is operated in holding state, battery power supply system also has tens to hundreds of uA electric current existence, battery power consumption, always in consumption state, causes harmful effect to the continued power ability of battery power supply system thus.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of energy-saving control circuit of embedded system of the continued power ability that can improve battery power supply system.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of energy-saving control circuit of embedded system, comprises the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the first triode, the second triode, the first diode, the second diode, the first electric capacity, stabilivolt and button, one end of the first described resistance, the emitter of the second described triode is connected with one end of described button and its link is used for accessing battery forward voltage, the other end of the first described resistance, the base stage of the second described triode is connected with one end of the second described resistance, and the other end of the second described resistance is connected with the collector of the first described triode, the base stage of the first described triode, the negative pole of the first described diode is connected with the negative pole of the second described diode, the positive pole of the first described diode is connected with one end of the 3rd described resistance, the other end of the 3rd described resistance is for accessing the power supply signal of embedded system, the positive pole of the second described diode is connected with one end of the 4th described resistance, the other end of the 4th described resistance, one end of the 5th described resistance is connected with the other end of described button, the other end of the 5th described resistance, the negative pole of described stabilivolt, one end of the 6th described resistance is connected with one end of the first described electric capacity, and the other end of the 6th described resistance is used for to embedded system output key signal, the emitter of the first described triode, the other end ground connection of the positive pole of described stabilivolt and described the first electric capacity, the collector of the second described triode connects the power end of embedded system.
The collector of the second described triode connects the power end of embedded system by Voltage stabilizing module.
Described Voltage stabilizing module comprises voltage stabilizing chip, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the 5th electric capacity, the signal input part of described voltage stabilizing chip, one end of one end of the second described electric capacity and the 3rd described electric capacity is all connected with the collector of described the second triode, the signal output part of described voltage stabilizing chip, after being connected, one end three of one end of the 4th described electric capacity and described the 5th electric capacity is connected with the power end of embedded system, the earth terminal of described voltage stabilizing chip, the other end of the second described electric capacity, the other end of the 3rd described electric capacity, the equal ground connection of the other end of the other end of the 4th described electric capacity and the 5th described electric capacity.
Compared with prior art, the utility model has the advantage of the opening and closing by the control of button being controlled to electric power system, by button, the 4th resistance, the second diode, the first triode, the second resistance, the first resistance, the second triode, whether the power end voltage that the circuit of battery and embedded system composition is controlled embedded system accesses, and passes through button, the 5th resistance, the 6th resistance, the button detection module of the first electric capacity and stabilivolt composition generates push button signalling and sends to embedded system, embedded system judges that according to push button signalling whether battery power supply system is in power supply state, in the time that button is pressed for the first time, the power end access voltage of embedded system enters duty, button detection module generates push button signalling and sends to embedded system, embedded system is judged powered battery according to push button signalling, sends to power supply signal to the 3rd resistance, by battery, the first resistance, the second resistance, the first triode, the first diode, the 3rd resistance, the circuit of embedded system and the second triode composition forms path, and battery starts power supply, battery, embedded system and energy-saving control circuit are all in running order, when again pushing button, button detection module again generates push button signalling and sends to embedded system, embedded system judges that according to push button signalling battery power supply system power supply is complete, now embedded system no longer sends power supply signal to the 3rd resistance, by battery, the first resistance, the second resistance, the first triode, the first diode, the 3rd resistance, the circuit of embedded system and the second triode composition forms and opens circuit, battery is disconnected, battery power supply system is closed no longer power supply, what energy-saving control circuit of the present utility model can be according to user of service thus determines whether employing powered battery accurately to the operation of button, in the time not powering, directly cut off battery, battery power supply system is closed, battery power consumption can be in consumption state, improve thus the continued power ability of battery power supply system,
When the collector of the second triode connects the power end of embedded system by Voltage stabilizing module, Voltage stabilizing module carries out voltage stabilizing processing to the operating voltage of embedded system access, has improved stability and the reliability of battery power supply system,
In the time that Voltage stabilizing module comprises voltage stabilizing chip, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the 5th electric capacity, voltage stabilizing chip improves the voltage stability of energy-saving control circuit, the second electric capacity, the 3rd electric capacity, the 4th electric capacity and the 5th electric capacity filter forming undesired signal in circuit, further improve circuit stability, ensure control accuracy.
Brief description of the drawings
Fig. 1 is the circuit diagram of embodiment mono-;
Fig. 2 is the circuit structure diagram of embodiment bis-;
Fig. 3 is the circuit diagram of embodiment bis-.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment mono-: as shown in Figure 1, a kind of energy-saving control circuit of embedded system, comprises the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the first triode Q1, the second triode Q2, the first diode D1, the second diode D2, the first capacitor C 1, stabilivolt Z1 and button SW1, one end of the first resistance R 1, the emitter of the second triode Q2 is connected with one end of button SW1 and its link is used for accessing battery power supply system battery forward voltage, the other end of the first resistance R 1, the base stage of the second triode Q2 is connected with one end of the second resistance R 2, and the other end of the second resistance R 2 is connected with the collector of the first triode Q1, the base stage of the first triode Q1, the negative pole of the first diode D1 is connected with the negative pole of the second diode D2, the positive pole of the first diode D1 is connected with one end of the 3rd resistance R 3, the other end of the 3rd resistance R 3 receives the power supply signal ON of embedded system output, the positive pole of the second diode D2 is connected with one end of the 4th resistance R 4, the other end of the 4th resistance R 4, one end of the 5th resistance R 5 is connected with the other end of button SW1, the other end of the 5th resistance R 5, the negative pole of stabilivolt Z1, one end of the 6th resistance R 6 is connected with one end of the first capacitor C 1, the other end of the 6th resistance R 6 is used for to embedded system output key signal SW, embedded system judges that according to push button signalling SW battery power supply system is in use state or non-working condition, the emitter of the first triode Q1, the other end ground connection of the positive pole of stabilivolt Z1 and the first capacitor C 1, the collector of the second triode Q2 connects the power end of embedded system.
The principle of work of the energy-saving control circuit of the present embodiment is: first energy-saving control circuit is linked in battery power supply system, energy-saving control circuit is connected with the corresponding end of battery and embedded system, and the button SW1 of energy-saving control circuit uses as switch.Using when battery power supply system, the user of service SW1 that pushes button for the first time, button SW1 sends signal, now, by button SW1, the 4th resistance R 4, the second diode D2, the first triode Q1, the second resistance R 2, the first resistance R 1, the second triode Q2, the circuit of battery and embedded system composition forms path, and the power end access voltage of embedded system enters duty, by button SW1, the 5th resistance R 5, the 6th resistance R 6, push button signalling SW is sent to embedded system by the button detection module of the first capacitor C 1 and stabilivolt Z1 composition, embedded system judges that according to push button signalling SW whether battery power supply system is in power supply state, such as pressing for the first time, button SW1 represents that battery power supply system starts power supply, button SW1 presses for the second time and represents that battery power supply system power supply is complete, now push button signalling SW represents that button SW1 presses for the first time, embedded system is judged powered battery according to push button signalling SW, send to power supply signal ON to the 3rd resistance R 3, by battery, the first resistance R 1, the second resistance R 2, the first triode Q1, the first diode D1, the 3rd resistance R 3, the circuit of embedded system and the second triode Q2 composition forms path, and battery starts power supply, battery, embedded system and energy-saving control circuit are all in running order, as the SW1 that again pushes button, button SW1 sends signal, by button SW1, the 5th resistance R 5, the 6th resistance R 6, the button detection module of the first capacitor C 1 and stabilivolt Z1 composition sends to embedded system by push button signalling SW again, embedded system judges that according to push button signalling SW battery power supply system power supply is complete, now embedded system no longer sends power supply signal ON to the 3rd resistance R 3, by battery, the first resistance R 1, the second resistance R 2, the first triode Q1, the first diode D1, the 3rd resistance R 3, the circuit of embedded system and the second triode Q2 composition forms and opens circuit, battery is disconnected, battery power supply system is closed no longer power supply.The energy-saving control circuit of the present embodiment can determine whether employing powered battery accurately according to user of service's operation, in the time not powering, directly cut off battery, embedded system is no longer worked, battery power supply system is closed, battery power consumption can be in consumption state, improves thus the continued power ability of battery power supply system.
Embodiment bis-: as shown in Figure 2, the present embodiment and embodiment mono-are basic identical, difference is only that the collector of the second triode Q2 connects the power end of embedded system by Voltage stabilizing module.
As shown in Figure 3, Voltage stabilizing module comprises voltage stabilizing chip U1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4 and the 5th capacitor C 5, the signal input part of voltage stabilizing chip U1, one end of one end of the second capacitor C 2 and the 3rd capacitor C 3 is all connected with the collector of the second triode Q2, the signal output part of voltage stabilizing chip U1, after being connected with one end three of the 5th capacitor C 5, one end of the 4th capacitor C 4 is connected with the power end of embedded system, the earth terminal of voltage stabilizing chip U1, the other end of the second capacitor C 2, the other end of the 3rd capacitor C 3, the equal ground connection of the other end of the other end of the 4th capacitor C 4 and the 5th capacitor C 5.
In the present embodiment, in Voltage stabilizing module, improve the voltage stability of energy-saving control circuit by voltage stabilizing chip U1, and filter forming undesired signal in circuit by the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4 and the 5th capacitor C 5 in Voltage stabilizing module, further improve circuit stability, ensure control accuracy.