CN206323290U - The starting or stopping control circuit and DC DC converters of DC DC converters - Google Patents
The starting or stopping control circuit and DC DC converters of DC DC converters Download PDFInfo
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- CN206323290U CN206323290U CN201621370365.4U CN201621370365U CN206323290U CN 206323290 U CN206323290 U CN 206323290U CN 201621370365 U CN201621370365 U CN 201621370365U CN 206323290 U CN206323290 U CN 206323290U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The utility model discloses a kind of starting or stopping control circuit of DC DC converters and DC DC converters, the starting or stopping control circuit of DC DC converters includes power connector end to be converted, DC DC inputs connection end, DC DC outputs connection end, switch module, detection module, trigger module and switch control module；First connection end of power connector end connecting valve module to be converted；The second connection end connection DC DC inputs connection end of switch module, the first control end of controlled end connection trigger module and the second control end of switch control module；The triggering state test side of the triggering state output end connection detection module of trigger module；The start and stop test side connection DC DC outputs connection end of detection module, the control signal input of control signal output connecting valve control module, the problem of electric energy of conversion electric power signal being still lost efficiently against the voltage conversion circuit of DC DC converters in the standby state, it is to avoid the waste of resource.
Description
Technical field
The utility model is related to electronic technology field, more particularly to a kind of dc-dc starting or stopping control circuit and DC-
DC converters.
Background technology
Dc-dc is a kind of electric pressure converter, for realizing the conversion of different DC voltage values, because it has conversion
Efficiency high, the advantages of high current and small quiescent current can be exported, it is widely used in automobile, mobile phone, digital camera and portable
In the products such as formula media player.
Dc-dc has power connector end to be converted, voltage conversion circuit and voltage output end；Wherein standby power
Connection end is used to access DC power signal to be converted；Under dc-dc open state, i.e. its power connector end to be converted
Upper electricity, its voltage conversion circuit work treats conversion electric power signal and carries out photovoltaic conversion, and exports the voltage signal after conversion；
It is under dc-dc holding state, i.e., electric on its power connector end to be converted, but its voltage conversion circuit do not work, no conversion
Voltage signal output afterwards.Therefore, in actual applications, it is often necessary to which the start and stop to dc-dc are controlled.
In the prior art, the voltage input end of the power connector end to be converted of dc-dc and its voltage conversion circuit
Connect always, the start and stop of dc-dc are controlled by the Enable Pin of control voltage change-over circuit, specifically, when its voltage
When the Enable Pin of change-over circuit detects enable signal, voltage conversion circuit work, when the Enable Pin of its voltage conversion circuit is examined
When measuring cut-off signals, voltage conversion circuit is stopped.However, the electricity of power connector end to be converted and its voltage conversion circuit
Pressure input is connected always, therefore, in the standby state, the part electronics member device in the voltage conversion circuit of dc-dc
The electric energy of power supply signal to be converted can be still lost in part, and which results in the waste of resource.
Utility model content
Technical problem to be solved in the utility model be there is provided a kind of starting or stopping control circuit of dc-dc and
Dc-dc, can be efficiently against dc-dc in the standby state, and conversion electricity is still lost in its voltage conversion circuit
The problem of electric energy of source signal, it efficiently avoid the waste of resource.
In order to solve the above-mentioned technical problem, the one side of the utility model embodiment provides a kind of dc-dc
Starting or stopping control circuit, including power connector end to be converted, DC-DC input connection end, DC-DC outputs connection end, switch module, inspection
Survey module, trigger module and switch control module；
The switch module has the first connection end, the second connection end and controlled end；The trigger module has the first control
End processed, triggering state output end and the external trigger end for receiving outer triggering signal；The switch control module has control
Signal input part processed and the second control end；The detection module has start and stop test side, triggering state test side and control signal
Output end；
The power connector end to be converted connects the first connection end of the switch module；The second of the switch module connects
The end connection DC-DC inputs connection end is connect, the controlled end connects the first control end and the switch of the trigger module
Second control end of control module；The triggering state output end of the trigger module connects the triggering state inspection of the detection module
Survey end；The start and stop test side of the detection module connects the DC-DC outputs connection end, and the control signal output connects institute
State the control signal input of switch control module.
Preferably, the switch module includes first resistor, second resistance and first switch pipe；
The first end of the first resistor is the controlled end of the switch module；The second end connection institute of the first resistor
State the first end of second resistance and the control end of the first switch pipe；The second end connection described first of the second resistance is opened
Close the first end of pipe；The first end of the first switch pipe is the first connection end of the switch module, the first switch pipe
The second end be the switch control module the second connection end.
In one preferred embodiment, the first switch pipe is PNP triode；
First connection end of the extremely described first switch pipe of transmitting of the PNP triode, the current collection of the PNP triode
Second connection end of extremely described first switch pipe, the base stage of the PNP triode is the control end of the first switch pipe.
Another preferred embodiment in, the first switch pipe be P-channel metal-oxide-semiconductor；
The drain electrode of the P-channel metal-oxide-semiconductor is the first connection end of the first switch pipe, the source electrode of the P-channel metal-oxide-semiconductor
For the second connection end of the first switch pipe, the grid of the P-channel metal-oxide-semiconductor is the control end of the first switch pipe.
Preferably, the switch module also includes the first electric capacity；
The positive pole of first electric capacity connects the second end of the first switch pipe, the negative pole ground connection of first electric capacity.
Preferably, the trigger module includes microswitch, the first diode, the second diode, 3rd resistor and the 4th
Resistance；
The shift knob of the microswitch is the external trigger end of the trigger module, the first end of the microswitch
Connect the negative pole of first diode and the negative pole of second diode, the second end ground connection of the microswitch；It is described
First control end of the just extremely described trigger module of the first diode；Positive pole connection the 3rd electricity of second diode
The first end of the first end of resistance and the 4th resistance；Second end of 3rd resistor is used to access DC power signal；Described
Second end of four resistance is the triggering state output end of the trigger module.
Preferably, the switch control module includes the 5th resistance, the 6th resistance and second switch pipe；
The first end of 5th resistance is the control signal input of the switch control module, the 5th resistance
Second end connects the control end of the second switch pipe；The first end of the second switch pipe by the 6th resistance eutral grounding,
Second end of the second switch pipe is the second control end of the switch control module.
Preferably, the second switch pipe is NPN triode or N-channel MOS pipe.
Preferably, the detection module is microcontroller.
Correspondingly, in order to solve the above problems, the utility model embodiment another aspect provides a kind of DC-DC turn
Parallel operation, including the starting or stopping control circuit of dc-dc that voltage conversion circuit and above-described embodiment are provided；The DC-DC
The power connector end to be converted of the starting or stopping control circuit of converter is used to access DC power signal to be converted；
The voltage conversion circuit has voltage input end and voltage output end；The voltage input end connects the DC-
The DC-DC inputs connection end of the starting or stopping control circuit of DC converters, the voltage output end connects opening for the dc-dc
Stop controlling the DC-DC of circuit to export connection end.
Implement the utility model, have the advantages that：
The starting or stopping control circuit for the dc-dc that the utility model is provided, by power connector end connecting valve to be converted
First connection end of module；The second connection end connection DC-DC inputs connection end of switch module, controlled end connection trigger module
Second control end of the first control end and switch control module；The triggering state output end connection detection module of trigger module touch
Hair-like state test side, external trigger end is used to receive outer triggering signal；The start and stop test side connection DC-DC outputs of detection module
Connection end, the control signal input of control signal output connecting valve control module；The utility model can be in trigger mode
When the external trigger termination of block receives start corresponding trigger signal, power connector end to be converted is controlled to be connected with DC-DC inputs
The connection at end, when receiving standby corresponding trigger signal, power connector end to be converted is broken with DC-DC inputs connection end
Open, the electric energy of conversion electric power signal is still lost in the voltage conversion circuit for effectively overcoming dc-dc in the standby state
The problem of, it is to avoid the waste of resource.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the starting or stopping control circuit for the dc-dc that the utility model is provided
Figure；
Fig. 2 is that the circuit of another embodiment of the starting or stopping control circuit for the dc-dc that the utility model is provided is former
Reason figure；
Fig. 3 is the structural representation of the one embodiment for the dc-dc that the utility model is provided；
Fig. 4 is the circuit theory diagrams of another embodiment of the dc-dc that the utility model is provided.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, being the knot of one embodiment of the starting or stopping control circuit for the dc-dc that the utility model is provided
Structure schematic diagram.
The starting or stopping control circuit 100 of dc-dc in the present embodiment, including power connector end Vin, DC- to be converted
DC input connection end Vdc_in, DC-DC outputs connection end Vdc_out, switch module 101, detection module 102, trigger module 103
With switch control module 104；
The switch module 101 has the first connection end, the second connection end and controlled end；The trigger module 103 has
First control end, triggering state output end and the external trigger end Signal for receiving outer triggering signal；The switch control
Molding block 104 has control signal input and the second control end；The detection module 102 has start and stop test side, triggering shape
State test side and control signal output；
First connection end of the power connector end Vin connections switch module 101 to be converted；The switch module
101 the second connection end connects the DC-DC inputs connection end Vdc_in, and the controlled end connects the trigger module 103
Second control end of the first control end and the switch control module 104；The triggering state output end of the trigger module 103 connects
Connect the triggering state test side of the detection module 102；It is defeated that the start and stop test side of the detection module 102 connects the DC-DC
Go out connection end Vdc_out, the control signal output connects the control signal input of the switch control module 104.
In the present embodiment, the power connector end to be converted is used to access DC power signal to be converted, the DC-
DC inputs connection end Vdc_in is used for the voltage input end for connecting the voltage transformation module in dc-dc, and the DC-DC is defeated
Go out the voltage output end that connection end Vdc_out is used to connect the voltage transformation module in dc-dc.
In the present embodiment, the switch module 101 is used to control the power connector end Vin to be converted and DC-
Connected state between DC inputs connection end Vdc_in.Specifically, when the voltage of the controlled end of the switch module 101 is less than in advance
If during magnitude of voltage, its first connection end and the second connection end disconnect, then the power connector end Vin to be converted and DC-DC
Connection end Vdc_in is inputted to disconnect；When the voltage of the controlled end of the switch module 101 is higher than preset voltage value, its first company
Connect end to connect with the second connection end, then power connector end Vin to be converted and the DC-DC input connection end Vdc_in connects
It is logical.In addition, the voltage of the controlled end of the switch module 101 is total to by the trigger module 103 and the switch control module 104
With control.
In the present embodiment, the trigger module 103 is used to receiving the trigger signal of user input, and according to receiving
The voltage for the controlled end that trigger signal controls the switch module 101 from the one hand, and according to the trigger signal received
Corresponding triggering state signal is exported to the detection module 102, so that the detection module 102 is according to the trigger mode detected
The triggering state of block 103 exports corresponding control signal, and then controls the work of the switch control module 104；Wherein, it is described
Trigger signal is connection trigger signal and shut-off trigger signal.Specifically, the voltage of the first control end of the trigger module 103
As the external trigger end Signal of the trigger module 103 receives the change of trigger signal and change, when the outside is touched
When originator Signal receives connection trigger signal, the voltage of first control end is less than preset voltage value, so that described open
The voltage for closing the controlled end of module 101 is less than preset voltage value, and the triggering state output end exports low level signal；When described
When external trigger end Signal receives shut-off trigger signal, the voltage of first control end is higher than preset voltage value, so that
The voltage of the controlled end of the switch module 101 is higher than preset voltage value, and the triggering state output end exports high level signal.
The detection module 102 is used for the electric signal and the trigger mode for detecting that the DC-DC exports connection end Vdc_out
The electric signal of the triggering state output end output of block 103, and corresponding control signal is exported according to testing result, it is described to control
The voltage of second control end of switch control module 104.Specifically, there is telecommunications at DC-DC outputs connection end Vdc_out
During number input (dc-dc under the open state, its voltage transformation module normal work, the electricity of voltage transformation module
Pressure output end normally exports the voltage signal after conversion), the control signal output output high level letter of the detection module 102
Number；If in addition, the triggering state test side of the detection module 102 detects lasting low level signal, and the low level is believed
Number duration exceed default time threshold (the explanation trigger module 103 persistently receive connection trigger signal, and it is touched
Hair state output end persistently exports low level signal, and exception occurs in trigger module 103), then the control of the detection module 102 is believed
Number output end output low level signal.
The switch control module 104 is used for the control for receiving the control signal output from the detection module 102
Signal, and according to the control signal received from another point of view come the voltage of the controlled end that controls the switch module 101.Specifically
Ground, the voltage of the second control end of the switch control module 104 receives control signal with its control signal input
Change and change, when the control signal input receives low level signal, the voltage of second control end is higher than pre-
If magnitude of voltage, so that the voltage of the controlled end of the switch module 101 is higher than preset voltage value；When the control signal input
When receiving high level signal, the voltage of second control end is less than preset voltage value, thus the switch module 101 by
The voltage for controlling end is less than preset voltage value.
The operation principle of the starting or stopping control circuit 100 for the dc-dc that the present embodiment is provided is as follows：
When needing start, the external trigger end Signal input connection triggering letters that user passes through the trigger module 103
Number, the voltage of the first control end of the trigger module 103 is less than preset voltage value, the controlled end of the switch module 101
Voltage is less than preset voltage value, and the first connection end of the switch module 101 is connected with the second connection end, i.e., described electricity to be converted
Source connection is connected with DC-DC inputs connection end Vdc_in, at the same time, and the DC-DC inputs connection end Vdc_in will
Input high level signal, i.e., the start and stop test side of described detection module 102 detects high level signal, now, if user is pre-
If time threshold in pass through the external trigger end Signal of the trigger module 103 input shut-off trigger signal, the detection
The control signal output of module 102 will export high level signal, the voltage of the second control end of the switch control module 104
Less than preset voltage value, the voltage of the controlled end of the switch module 101 is maintained below preset voltage value, it is described to be converted
Power connector end keeps connecting with DC-DC inputs connection end Vdc_in, starts shooting successfully；If on the contrary, user's abnormal operation,
I.e. user is after by the external trigger end Signal of the trigger module 103 input connection trigger signals, not default
Input shut-off trigger signal in time threshold, but lasting input connection trigger signal, the triggering state of the trigger module 103
Output end will persistently export low level signal, when the triggering state output end of the trigger module 103 persistently exports low level letter
Number duration exceed default time threshold when, the detection module 102 then judges user's abnormal operation, and then, control
Its control signal output exports low level signal, and the switch control module 104 detects the low electricity for carrying out self-detection module 102
Ordinary mail number, the voltage of the second control end of the switch control module 104 is higher than preset voltage value, now, as long as user passes through
The external trigger end Signal input shut-off trigger signals of the trigger module 103, the first control end of the trigger module 103
Voltage one be higher than default magnitude of voltage, the voltage of the controlled end of the switch module 101 is higher than preset voltage value, described to open
The first connection end and the second connection end for closing module 101 just disconnect, i.e., described power connector end to be converted and DC-DC inputs
Connection end Vdc_in disconnects, boot failure.
When needing standby, user persistently inputs connection by the external trigger end Signal of the trigger module 103 and touched
Signal, the triggering state output end of the trigger module 103 exports lasting low level signal, and the detection module 102 is controlled
Its control signal output output low level signal is made, the voltage of the second control end of the switch control module 104 is higher than pre-
If magnitude of voltage, the voltage of the controlled end of the switch module 101 is higher than preset voltage value, and the first of the switch module 101 connects
Connect end and the second connection end to disconnect, i.e., described power connector end to be converted and DC-DC inputs connection end Vdc_in disconnect,
DC-DC exports connection end Vdc_out and inputted without electric signal, completes standby.
Fig. 2 is referred to, is another embodiment of the starting or stopping control circuit for the dc-dc that the utility model is provided
Structural representation.
The starting or stopping control circuit 100 for the dc-dc that the present embodiment is provided is on the basis of above-described embodiment, further
The structure of partial function circuit is optimized, it is specific as follows：
Further, the switch module 101 includes first resistor R1, second resistance R2 and first switch pipe；
The first end of the first resistor R1 is the controlled end of the switch module 101；The second of the first resistor R1
End connection second resistance R2 first end and the control end of the first switch pipe；The second end of the second resistance R2 connects
Connect the first end of the first switch pipe；The first end of the first switch pipe is the first connection end of the switch module 101,
Second end of the first switch pipe is the second connection end of the switch control module 104.
Further, the first switch pipe is PNP triode Q1；
First connection end of the extremely described first switch pipe of transmitting of the PNP triode Q1, the PNP triode Q1's
Second connection end of the extremely described first switch pipe of current collection, the base stage of the PNP triode Q1 is the control of the first switch pipe
End processed.
In other optional embodiments, the first switch pipe is P-channel metal-oxide-semiconductor；
The drain electrode of the P-channel metal-oxide-semiconductor is the first connection end of the first switch pipe, the source electrode of the P-channel metal-oxide-semiconductor
For the second connection end of the first switch pipe, the grid of the P-channel metal-oxide-semiconductor is the control end of the first switch pipe.
Further, the switch module 101 also includes the first electric capacity C1；
The positive pole of the first electric capacity C1 connects the second end of the first switch pipe, and the negative pole of the first electric capacity C1 connects
Ground.
Further, the trigger module 103 includes microswitch S1, the first diode D1, the second diode D2, the 3rd
Resistance R3 and the 4th resistance R4；
The shift knob of the microswitch S1 is the external trigger end Signal of the trigger module 103, the fine motion
The first end for switching S1 connects the negative pole of the first diode D1 and the negative pole of the second diode D2, the microswitch
S1 the second end ground connection；First control end of the just extremely described trigger module 103 of the first diode D1；Described 2nd 2
Pole pipe D2 positive pole connects the first end of the 3rd resistor R3 and the first end of the 4th resistance R4；The of 3rd resistor R3
Two ends are used to access DC power signal Vcc；The second end of the 4th resistance R4 is the triggering state of the trigger module 103
Output end.
Further, the switch control module 104 includes the 5th resistance R5, the 6th resistance R6 and second switch pipe；
The first end of the 5th resistance R5 is the control signal input of the switch control module 104, the described 5th
Resistance R5 the second end connects the control end of the second switch pipe；The first end of the second switch pipe passes through the described 6th electricity
R6 ground connection is hindered, the second end of the second switch pipe is the second control end of the switch control module 104.
Further, the second switch pipe is NPN triode Q2 or N-channel MOS pipe.
Further, it is characterised in that the detection module 102 is microcontroller.
In the present embodiment, for the switch module 101, the first resistor R1 and the second resistance R2 are partial pressure
Resistance, and the voltage at the second resistance R2 two ends is voltage between the first end and control end of the first switch pipe
Difference.When the voltage of the first end of the first resistor R1 is less than preset voltage value, the first end of the first switch pipe and control
Voltage difference between end processed can match the conducting voltage of the first switch pipe, and then the first end of the switching tube and second
End connection；When the voltage of the first end of the first resistor R1 is higher than preset voltage value, the first end of the first switch pipe
Voltage difference between control end can not match the conducting voltage of the first switch pipe, and then the first of the first switch pipe
End and the second end disconnect.
Further, the first switch pipe selects the PNP triode Q1；Specifically, when the first resistor R1's
When the voltage of first end is less than preset voltage value, the voltage difference between the base stage and emitter stage of the PNP triode Q1 is less than institute
PNP triode Q1 emitter junction conducting voltage is stated, then the PNP triode Q1 is accordingly turned on.It should be noted that can at other
In the embodiment of choosing, the first switch pipe can also select the P-channel metal-oxide-semiconductor；Specifically, as the first resistor R1
The voltage of first end when being less than preset voltage value, the voltage of the grid of the P-channel metal-oxide-semiconductor is less than its source voltage, and two
The absolute value of voltage difference between person is more than the minimum cut-in voltage of the P-channel metal-oxide-semiconductor, then the P-channel metal-oxide-semiconductor is accordingly led
It is logical.
In addition, the first electric capacity C1 is storage capacitor.When the first switch pipe is turned on, the first electric capacity C1 fills
Electricity, when the first switch pipe ends, the first electric capacity C1 electric discharges, by DC-DC inputs connection end Vdc_in even
The electricity consumption device connect is powered so that the electricity consumption device remains to keep work in a short time.If it should be noted that in circuit
Component be quick on the draw, the microswitch S1 is pressed, first switch pipe conducting, is lifted in the microswitch S1
Moment, the DC-DC exports connection end Vdc_out input electrical signals, and the microcontroller has exported high level signal
To the first end of the 5th resistance R5, the second switch pipe has been turned on, the voltage of the first end of the first resistor R1
Preset voltage value is still below, therefore, during the microswitch S1 is pressed and lifted, the first switch pipe is protected always
Conducting is held, the electricity consumption device that the DC-DC inputs connection end Vdc_in can be connected incessantly is powered, i.e., described electricity consumption
Device can be always maintained at normal work.But if the component reaction in circuit is relatively slow, and moment is lifted in the microswitch S1,
The possible second switch pipe is not in time for conducting also, then the first switch pipe cut-off, the DC-DC inputs connection occurs
The situation that the power supply for the electricity consumption device that end Vdc_in is connected is interrupted, influences the normal work of the electricity consumption device.Therefore, originally
In embodiment, the first electric capacity C1 is set, in the case that component reaction in circuit is relatively slow, the microswitch S1 lifts
Rise moment, the first switch pipe cut-off, now, the first electric capacity C1 electric discharges are the DC-DC inputs connection end Vdc_in
The electricity consumption device connected is powered so that the electricity consumption device remains to keep work in a short time, as long as rationally setting described
First electric capacity C1 parameter, then can ensure before the first electric capacity C1 electric discharges are completed, the second switch pipe has been turned on,
Can guarantee that during the microswitch S1 is pressed and lifted, DC-DC input connection end Vdc_in always not between
Powered disconnectedly for the electricity consumption device that is connected, to ensure the normal work of the electricity consumption device, improve the reliability of circuit；Need
It is noted that when the starting or stopping control circuit 100 for the dc-dc for providing the present embodiment is applied to dc-dc,
The electricity consumption device refers to the voltage conversion chip in the voltage transformation module of the dc-dc.
In the present embodiment, for the trigger module 103, the microswitch S1 is light touch type button, the fine motion
Switch S1 has first end, the second end and shift knob；User inputs trigger signal by shift knob, when user presses institute
When stating shift knob, i.e. input connects trigger signal, and the first end of the microswitch S1 is connected with second end；Work as user
When lifting the shift knob, i.e. input turns off trigger signal, and the first end of the microswitch S1 and second end disconnect.
The first diode D1 is used to realize reverse blocking, that is, prevents that the second switch pipe in the switch control module 104 from turning on
When the negative pole of the second diode D2 is dragged down, so as to influence the output of the triggering state output end of the trigger module 103
Signal.The assembled unit that the second diode D2,3rd resistor R3 and the 4th resistance R4 are constituted, for detecting the fine motion
S1 triggering situation is switched, when the microswitch S1 is in lifting status, the first end and second of the microswitch S1
End disconnects, and the first end of the 4th resistance R4 is clamped at high level, therefore, and the second end output of the 4th resistance R4 is high
Level signal；When the microswitch S1 is in down state, the first end of the microswitch S1 is connected with the second end, institute
State the second of 3rd resistor R3 terminate into DC power signal connect by the 3rd resistor R3 and the second diode D2
Ground, then be changed into low level, the 4th resistance (i.e. at the 4th resistance R4 first end) at the first end of the 3rd resistor R3
R4 the second end output low level signal.
In the present embodiment, for the switch control module 104, the 5th resistance R5 is current-limiting resistance, described the
Six resistance R6 are divider resistance.When the first end input low level signal of the 5th resistance R5, the of the second switch pipe
One end and the second end disconnect, and the voltage at the second end of the second switch pipe is higher than preset voltage value, thus the switch module
The voltage of 101 first resistor R1 first end is higher than preset voltage value；When the high electricity of first end input of the 5th resistance R5
Ordinary mail number, the first end of the second switch pipe is connected with the second end, and is grounded by the 6th resistance R6, and described second opens
The voltage for closing the second end of pipe is less than preset voltage value, thus the electricity of the first resistor R1 of the switch module 101 first end
Force down in preset voltage value.
In the present embodiment, for the detection module 102, three I/O ports are chosen in the microcontroller, it is right respectively
Answer the start and stop test side, triggering state test side and control signal output of the detection module 102.When DC-DC outputs
(i.e. dc-dc is under open state, and its voltage transformation module is normal when having electric signal input at the Vdc_out of connection end
Work, the voltage output end of voltage transformation module normally exports the voltage signal after conversion), the control signal of the microcontroller
Output end IO1 exports high level signal；If in addition, the triggering state test side IO2 of the microcontroller detect it is lasting low
Level signal, and the duration of the low level signal, (the explanation trigger module 103 persistently connect more than default time threshold
Connection trigger signal is received, its triggering state output end persistently exports low level signal, exception occurs in trigger module 103), then institute
State the control signal output IO1 output low level signals of microcontroller.
The operation principle of the starting or stopping control circuit 100 for the dc-dc that the present embodiment is provided is as follows：
When needing start, user presses the microswitch S1, and the voltage of the positive pole of the first diode D1 is less than
Preset voltage value, the voltage difference between the first end and control end of the first switch pipe can match the first switch pipe
Conducting voltage, the first switch pipe conducting, i.e., described power connector end to be converted and DC-DC inputs connection end Vdc_in
Connection, i.e., the start and stop test side of described microcontroller detects high level signal, at the same time, and the DC-DC inputs connection end
Vdc_in is now, described micro- if user lifts the microswitch S1 in default time threshold by input high level signal
The control signal output of controller will export high level signal, and the second switch pipe conducting, the first switch pipe is turned on,
The power connector end to be converted keeps connecting with DC-DC inputs connection end Vdc_in, starts shooting successfully；If on the contrary, with
Family abnormal operation, i.e. user lift the fine motion in default time threshold after the microswitch S1 is pressed, not and opened
S1 is closed, but persistently presses the microswitch S1, the second end of the 4th resistance R4 will persistently export low level signal, when
The triggering state test side of the microcontroller continues to low level signal, and its duration exceedes default time threshold
When, the microcontroller then judges user's abnormal operation, and then, control its control signal output to export low level signal, institute
The cut-off of second switch pipe is stated, the voltage at the second end of the second switch pipe is higher than preset voltage value, now, as long as user lifts
The microswitch S1, the voltage one of the positive pole of the first diode D1 is higher than default magnitude of voltage, the first switch pipe
Just end, i.e., described power connector end Vin to be converted and DC-DC inputs connection end Vdc_in disconnect, boot failure.
When needing standby, user persistently presses the microswitch S1, the second of the 4th resistance R4 support it is continuous defeated
Go out low level signal, the microcontroller detects lasting low level signal, and its duration exceedes default time threshold
Value, then control its control signal output IO1 to export low level signal, the second switch pipe cut-off, the first switch pipe
Cut-off, i.e., described power connector end Vin to be converted and DC-DC inputs connection end Vdc_in disconnect, DC-DC outputs connection end
Vdc_out is inputted without electric signal, is completed standby.
Fig. 3 is referred to, is the structural representation of dc-dc one embodiment that the utility model is provided.
The dc-dc that the present embodiment is provided, including voltage transformation module 200 and above-described embodiment are provided
The starting or stopping control circuit 100 of dc-dc；The power supply to be converted connection of the starting or stopping control circuit 100 of the dc-dc
End Vin is used to access DC power signal to be converted；
The voltage transformation module 200 has voltage input end and voltage output end；The voltage input end connection is described
The DC-DC input connection end Vdc_in of the starting or stopping control circuit 100 of dc-dc, the voltage output end connects the DC-
The DC-DC outputs connection end Vdc_out of the starting or stopping control circuit 100 of DC converters.
In the present embodiment, when the dc-dc starting or stopping control circuit 100 power connector end Vin to be converted
DC power signal to be converted is accessed, and the power connector end Vin to be converted and DC-DC inputs connection end Vdc_in connects
When logical, the voltage input end of the DC power signal to be converted from the voltage transformation module 200 is input to the voltage and turned
Block 200 is changed the mold, the voltage transformation module 200 is started working, and then the dc source after conversion is exported from its voltage output end
Signal, to be powered to the electricity consumption device that the voltage output end is connected.
Fig. 4 is referred to, is the structural representation of another embodiment of the dc-dc that the utility model is provided.
The dc-dc that the present embodiment is provided has refined the voltage on the basis of above-described embodiment, further and turned
The structure of block 200 is changed the mold, it is specific as follows：
Further, the voltage transformation module 200 includes the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth
Resistance R10, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5, the 3rd diode D3, inductance L1 and voltage
Conversion chip U1；The annexation of above-mentioned component is referring to Fig. 4, be not added with being described in detail herein.
The dc-dc of the starting or stopping control circuit sum for the dc-dc that the utility model is provided, by power supply to be converted
First connection end of connection end connecting valve module；The second connection end connection DC-DC inputs connection end of switch module, controlled end
Connect the first control end of trigger module and the second control end of switch control module；The triggering state output end of trigger module connects
The triggering state test side of detection module is connect, external trigger end is used to receive outer triggering signal；The start and stop detection of detection module
End connection DC-DC outputs connection end, the control signal input of control signal output connecting valve control module；This practicality is new
Type can when the external trigger termination of trigger module receives the corresponding trigger signal of start, control power connector end to be converted with
DC-DC inputs the connection of connection end, when receiving standby corresponding trigger signal, by power connector end to be converted and DC-DC
Input connection end to disconnect, conversion electricity is still lost in the voltage conversion circuit for effectively overcoming dc-dc in the standby state
The problem of electric energy of source signal, it is to avoid the waste of resource.
The above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvement and deformation can also be made, these improve and become
Shape is also considered as protection domain of the present utility model.
Claims (10)
1. a kind of starting or stopping control circuit of dc-dc, it is characterised in that inputted including power connector end to be converted, DC-DC
Connection end, DC-DC outputs connection end, switch module, detection module, trigger module and switch control module；
The switch module has the first connection end, the second connection end and controlled end；The trigger module have the first control end,
Triggering state output end and the external trigger end for receiving outer triggering signal；The switch control module has control signal
Input and the second control end；The detection module has start and stop test side, triggering state test side and control signal output；
The power connector end to be converted connects the first connection end of the switch module；Second connection end of the switch module
The DC-DC inputs connection end is connected, the controlled end connects the first control end and the switch control of the trigger module
Second control end of module；The triggering state output end of the trigger module connects the triggering state detection of the detection module
End；The start and stop test side of the detection module connects the DC-DC outputs connection end, and the control signal output connection is described
The control signal input of switch control module.
2. the starting or stopping control circuit of dc-dc as claimed in claim 1, it is characterised in that the switch module includes
First resistor, second resistance and first switch pipe；
The first end of the first resistor is the controlled end of the switch module；The second end connection described the of the first resistor
The control end of the first end of two resistance and the first switch pipe；Second end of the second resistance connects the first switch pipe
First end；The first end of the first switch pipe is the first connection end of the switch module, the of the first switch pipe
Two ends are the second connection end of the switch control module.
3. the starting or stopping control circuit of dc-dc as claimed in claim 2, it is characterised in that the first switch pipe is
PNP triode；
First connection end of the extremely described first switch pipe of transmitting of the PNP triode, the current collection of the PNP triode is extremely
Second connection end of the first switch pipe, the base stage of the PNP triode is the control end of the first switch pipe.
4. the starting or stopping control circuit of dc-dc as claimed in claim 2, it is characterised in that the first switch pipe is P
Channel MOS tube；
The drain electrode of the P-channel metal-oxide-semiconductor is the first connection end of the first switch pipe, and the source electrode of the P-channel metal-oxide-semiconductor is institute
The second connection end of first switch pipe is stated, the grid of the P-channel metal-oxide-semiconductor is the control end of the first switch pipe.
5. the starting or stopping control circuit of dc-dc as claimed in claim 2, it is characterised in that the switch module is also wrapped
Include the first electric capacity；
The positive pole of first electric capacity connects the second end of the first switch pipe, the negative pole ground connection of first electric capacity.
6. the starting or stopping control circuit of dc-dc as claimed in claim 1, it is characterised in that the trigger module includes
Microswitch, the first diode, the second diode, 3rd resistor and the 4th resistance；
The shift knob of the microswitch is the external trigger end of the trigger module, the first end connection of the microswitch
The negative pole of the negative pole of first diode and second diode, the second end ground connection of the microswitch；Described first
First control end of the just extremely described trigger module of diode；The positive pole of second diode connects the 3rd resistor
The first end of first end and the 4th resistance；Second end of 3rd resistor is used to access DC power signal；4th electricity
Second end of resistance is the triggering state output end of the trigger module.
7. the starting or stopping control circuit of dc-dc as claimed in claim 1, it is characterised in that the switch control module
Including the 5th resistance, the 6th resistance and second switch pipe；
The first end of 5th resistance is the control signal input of the switch control module, the second of the 5th resistance
The control end of the end connection second switch pipe；The first end of the second switch pipe is described by the 6th resistance eutral grounding
Second end of second switch pipe is the second control end of the switch control module.
8. the starting or stopping control circuit of dc-dc as claimed in claim 7, it is characterised in that the second switch pipe is
NPN triode or N-channel MOS pipe.
9. the starting or stopping control circuit of the dc-dc as described in any one of claim 1 to 8, it is characterised in that the detection
Module is microcontroller.
10. a kind of dc-dc, it is characterised in that including voltage conversion circuit and as described in any one of claim 1 to 9
Dc-dc starting or stopping control circuit；The power connector end to be converted of the starting or stopping control circuit of the dc-dc is used
In the DC power signal that access is to be converted；
The voltage conversion circuit has voltage input end and voltage output end；The voltage input end connects the DC-DC and turned
The DC-DC inputs connection end of the starting or stopping control circuit of parallel operation, the voltage output end connects the start and stop control of the dc-dc
The DC-DC outputs connection end of circuit processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370365.4U CN206323290U (en) | 2016-12-13 | 2016-12-13 | The starting or stopping control circuit and DC DC converters of DC DC converters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621370365.4U CN206323290U (en) | 2016-12-13 | 2016-12-13 | The starting or stopping control circuit and DC DC converters of DC DC converters |
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| Publication Number | Publication Date |
|---|---|
| CN206323290U true CN206323290U (en) | 2017-07-11 |
Family
ID=59266576
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621370365.4U Active CN206323290U (en) | 2016-12-13 | 2016-12-13 | The starting or stopping control circuit and DC DC converters of DC DC converters |
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| CN (1) | CN206323290U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107546971A (en) * | 2017-09-26 | 2018-01-05 | 上海展扬通信技术有限公司 | A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit |
| CN107885108A (en) * | 2017-12-18 | 2018-04-06 | 深圳科立讯通信有限公司 | The control device of electronic equipment |
| CN110417076A (en) * | 2019-06-20 | 2019-11-05 | 合肥澎湃能源技术有限公司 | Low-power consumption module and BMS for industry repacking vehicle |
| CN112994408A (en) * | 2019-12-02 | 2021-06-18 | 佛山市顺德区美的电热电器制造有限公司 | Low-power-consumption control system and control method, and electronic device |
| CN113241943A (en) * | 2021-06-23 | 2021-08-10 | 珠海拓芯科技有限公司 | Output voltage control circuit, method, controller and household appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546971A (en) * | 2017-09-26 | 2018-01-05 | 上海展扬通信技术有限公司 | A kind of power control circuit of intelligent terminal and the intelligent terminal with the circuit |
| CN107885108A (en) * | 2017-12-18 | 2018-04-06 | 深圳科立讯通信有限公司 | The control device of electronic equipment |
| CN107885108B (en) * | 2017-12-18 | 2024-03-19 | 深圳科立讯通信有限公司 | Control device for electronic equipment |
| CN110417076A (en) * | 2019-06-20 | 2019-11-05 | 合肥澎湃能源技术有限公司 | Low-power consumption module and BMS for industry repacking vehicle |
| CN110417076B (en) * | 2019-06-20 | 2023-02-03 | 合肥澎湃能源技术有限公司 | Low power module for industrial retrofit vehicle and BMS |
| CN112994408A (en) * | 2019-12-02 | 2021-06-18 | 佛山市顺德区美的电热电器制造有限公司 | Low-power-consumption control system and control method, and electronic device |
| CN114189036A (en) * | 2020-09-15 | 2022-03-15 | 杭州老板电器股份有限公司 | Emergency energy storage device and household appliance |
| CN113241943A (en) * | 2021-06-23 | 2021-08-10 | 珠海拓芯科技有限公司 | Output voltage control circuit, method, controller and household appliance |
| CN113241943B (en) * | 2021-06-23 | 2023-07-18 | 宁波奥克斯电气股份有限公司 | Output voltage control circuit, method, controller and household appliance |
| CN113904534A (en) * | 2021-09-29 | 2022-01-07 | 重庆电哥科技(集团)有限公司 | Power supply start-stop circuit and method with ultralow standby power consumption |
| CN113890158A (en) * | 2021-10-26 | 2022-01-04 | 东莞新能德科技有限公司 | Battery energy-saving circuit and electronic equipment |
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