CN205092797U - Electron device and circuit - Google Patents
Electron device and circuit Download PDFInfo
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- CN205092797U CN205092797U CN201520778784.0U CN201520778784U CN205092797U CN 205092797 U CN205092797 U CN 205092797U CN 201520778784 U CN201520778784 U CN 201520778784U CN 205092797 U CN205092797 U CN 205092797U
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 10
- 239000004065 semiconductor Substances 0.000 claims description 95
- 238000009434 installation Methods 0.000 claims description 42
- 230000004913 activation Effects 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000005355 Hall effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to an electron device and circuit, this circuit, including activation time control circuit, first operation element and second operation element, the starting voltage of first operation element is less than the starting voltage of second operation element, activation time control circuit is used for control synchronous for the activation time with the second operation element with the start -up time adjustment of first operation element. The utility model provides a have the electron device of circuit. The utility model discloses a circuit and electron device, the activation time of the simple structure of accessible different operation element in with electron device carries out synchronization, realizes synchronous starting.
Description
[technical field]
The utility model relates to a kind of electronic installation and circuit.
[background technology]
Some current electronic installations, as hair-dryer, dust catcher, electric tool etc., often have some operation elements.Generally, the starting resistor of more described operation element is not identical, and after causing system electrification, more described operation element will successively start.In some cases, tool related operation element is inconsistent for start-up time, easily causes various problem.
[utility model content]
In view of the above circumstances, the utility model provides a kind of electronic installation and circuit, and the start-up time that can realize the operation element in electronic installation with different starting resistor is synchronous.
A kind of electronic installation, comprise motor and motor-drive circuit, described motor-drive circuit comprises the first operation element, the second operation element and a delay circuit, and described time delay is for controlling time delay start-up time of the first operation element in described electronic installation to synchronous with the start-up time of the second operation element.
Further, described electronic installation also comprises a plant-grid connection unit, and described plant-grid connection unit comprises cathode output end and cathode output end, and described plant-grid connection unit is for accessing a supply voltage and exporting a specific voltage from cathode output end; Described delay circuit is connected with the first operation element, and between the series arm of delay circuit and the first operation element and this second operation element cathode output end that is parallel to plant-grid connection unit and cathode output end, described delay circuit is supplied to the first operation element after adjusting for the voltage exported the cathode output end of plant-grid connection unit, the voltage rise making cathode output end be supplied to the second operation element, to when equaling the starting resistor of the second operation element, is supplied to the voltage rise of the first operation element to the starting resistor equaling the first operation element.
Further, described delay circuit comprises partial pressure unit and upper electric unit, described partial pressure unit and power on units in series between the cathode output end and cathode output end of plant-grid connection unit, described partial pressure unit there is a conducting voltage and apply conducting when voltage is thereon more than or equal to described conducting voltage and clamper in described conducting voltage, described upper electric unit is used for after partial pressure unit conducting, producing voltage and being supplied to described first operation element; Wherein, the conducting voltage of described partial pressure unit and the starting resistor sum of described first operation element equal the starting resistor of described second operation element.
Further, described partial pressure unit comprises Zener diode, upper electric unit comprises a resistance, the negative electrode of described Zener diode is electrically connected with described cathode output end, anode is electrically connected with described first operation element, and be electrically connected with the cathode output end of plant-grid connection unit by described resistance, the puncture voltage of described Zener diode is the difference of the starting resistor of described second operation element and the starting resistor of described first operation element.
Further, described electronic installation also comprises the inverter be connected between described plant-grid connection unit and described motor, described first operation element is that position detector is for detecting the turned position of the rotor of described motor, described second operation element is switch driver, the turned position that described switch driver is used for the described rotor detected according to described position detector drives described inverter that the direct current that described plant-grid connection unit produces is converted to alternating current, thus drives described rotor to continue to rotate.
Further, the starting resistor of described first operation element is less than the starting resistor of described second operation element.
Further, described inverter is the H-bridge circuit comprising some semiconductor switch pipes.
Further, described switch driver is a mosfet driver, and described semiconductor switch pipe is MOSFET pipe.
Further, switch driver comprises the first half-bridge driver, the second half-bridge driver, the first inverter and the second inverter, described position detector comprises the first trigger end and the second trigger end, described first half-bridge driver comprises first input end, the second input, the first output and the second output, and described second half-bridge driver comprises first input end, the second input, the first output and the second output; First trigger end of described position detector is connected with the second input of described first half-bridge driver, and is connected with the first input end of described second half-bridge driver by the second inverter; Second trigger end of described position detector is connected with the first input end of described first half-bridge driver by the first inverter, and described second trigger end is also connected with the second input of described second half-bridge driver; First output, second output of the first output of described first half-bridge driver, the second output and described second half-bridge driver are connected with the first semiconductor switch pipe, the second semiconductor switch pipe, the 3rd semiconductor switch pipe and the 4th semiconductor switch pipe respectively, control first, second, third and the 4th conducting of semiconductor switch pipe or cut-off for exporting corresponding control signal respectively.
Further, the voltage of the first input end input of described first half-bridge driver is followed in the output of the first output of described first half-bridge driver, and the output of the second output of described first half-bridge driver is contrary with the voltage that the second input of described first half-bridge driver inputs; The input of the first input end of described second half-bridge driver is followed in the output of the first output of described second half-bridge driver, and the output of the second output of described second half-bridge driver is contrary with the input of the second input of described second half-bridge driver.
Further, when described position detector detects N magnetic pole, first trigger end and second trigger end of position detector export high level and low level respectively, thus export first triggering signal of " 10 ", when described position detector detects S magnetic pole, first trigger end of position detector and the second trigger end output low level and high level respectively, thus export second triggering signal of " 01 ".
Further, described motor is single-phase DC brushless motor.
The utility model also provides a kind of circuit, comprise the first operation element, the second operation element and start-up time control circuit, wherein, the starting resistor of described first operation element is less than the starting resistor of described second operation element, and described start-up time, the start-up time of the first operation element in described electronic installation was adjusted to synchronous with the start-up time of the second operation element for controlling by control circuit.
Further, described start-up time, control circuit was connected with the first operation element, and start-up time control circuit and the branch road of the first operation element and this second operation element be parallel between a direct voltage, described start-up time, control circuit was supplied to the first operation element after being used for adjusting described direct voltage, the voltage rise making to be supplied to the second operation element, to when equaling the starting resistor of the second operation element, is supplied to the voltage rise of the first operation element to the starting resistor equaling the first operation element.
Further, described start-up time, control circuit comprised partial pressure unit and upper electric unit, described partial pressure unit and power on units in series between the cathode output end and cathode output end of the plant-grid connection unit of electronic installation, described partial pressure unit there is a conducting voltage and apply conducting when voltage is thereon more than or equal to described conducting voltage and clamper in described conducting voltage, described upper electric unit is used for after partial pressure unit conducting, producing voltage and being supplied to described first operation element; Wherein, the conducting voltage of described partial pressure unit and the starting resistor sum of described first operation element equal the starting resistor of described second operation element.
Further, described partial pressure unit comprises Zener diode, upper electric unit comprises a resistance, the negative electrode of described Zener diode is electrically connected with described cathode output end, anode is electrically connected with described first operation element, and be electrically connected with the cathode output end of plant-grid connection unit by described resistance, the puncture voltage of described Zener diode is the difference of the starting resistor of described second operation element and the starting resistor of described first operation element.
Further, described circuit is a motor-drive circuit, and described first operation element is position detector, and described second operation element is switch driver.
Electronic installation of the present utility model and circuit, can realize carrying out synchronously the start-up time of different operation elements.
[accompanying drawing explanation]
Below in conjunction with Figure of description and embodiment, the utility model is described in further detail.
Fig. 1 is the functional block diagram of the subelement of electronic installation in the utility model one execution mode.
Fig. 2 is the physical circuit figure of circuit in electronic installation.
Fig. 3 is the circuit block diagram of electronic installation in the utility model one execution mode.
Fig. 4 is the circuit diagram that in the utility model one execution mode, electronic installation is more concrete.
Fig. 5 is the circuit diagram more specifically of the electronic installation in Fig. 4.
[embodiment]
Seeing also Fig. 1, is the functional block diagram of electronic installation 100 subelement in the utility model one execution mode.Described electronic installation 100 comprises circuit 101.Described circuit 101 comprises control circuit 1, first operation element 2, second operation element 3 start-up time.Described start-up time, control circuit 1 was preferably a delay circuit, for controlling, the start-up time of described first operation element 2 was adjusted to synchronous with the start-up time of the second operation element 3.
Seeing also Fig. 2, is the physical circuit figure of the circuit 101 in electronic installation 100 in the utility model one execution mode.As shown in Figure 2, described electronic installation 100 also comprises a plant-grid connection unit 4, and described plant-grid connection unit 4, for accessing supply voltage, comprises cathode output end 41 and cathode output end 42.Described first operation element 2 has the first starting resistor, and described second operation element 3 has the second starting resistor being greater than described first starting resistor.Described start-up time, control circuit 1 was connected with the first operation element 2, and start-up time control circuit 1 and between the series arm of the first operation element 2 and this second operation element cathode output end 41 that is parallel to plant-grid connection unit 4 and cathode output end 42.Described start-up time, control circuit 1 was supplied to the first operation element 2 after adjusting for the voltage exported the cathode output end 41 of plant-grid connection unit 4, the voltage rise making cathode output end 41 be supplied to the second operation element 3, to when equaling the starting resistor of the second operation element 3, is supplied to the voltage rise of the first operation element 2 to the starting resistor equaling the first operation element 2.
Concrete, described start-up time, control circuit 1 comprised the partial pressure unit 11 between cathode output end 41 and cathode output end 42 and upper electric unit 12 that are series at described plant-grid connection unit 4.Described second operation element 3 is directly connected with the cathode output end 41 of described plant-grid connection unit 4.Described partial pressure unit 11 there is a conducting voltage and apply conducting when voltage is thereon more than or equal to described conducting voltage and clamper in described conducting voltage.Wherein, described conducting voltage is described partial pressure unit 11 point partial pressure value walked from cathode output end 41 output voltage.Described upper electric unit 12 for producing voltage and being supplied to described first operation element 2 after partial pressure unit 11 conducting.
Wherein, the conducting voltage of described partial pressure unit 11 and the starting resistor sum of described first operation element 2 equal the starting resistor of described second operation element 3.Thus, when the voltage that plant-grid connection unit 4 exports exceedes the conducting voltage of described partial pressure unit 11, the conducting of described partial pressure unit 11 and clamper are at described turn-on power, if the voltage that therefore plant-grid connection unit 4 exports continues to rise, the voltage of rising can be applied to described upper electric unit.When the voltage continuation rising that described plant-grid connection unit 4 exports makes the voltage of described upper electric unit 12 equal the starting resistor of described first operation element 2, described first operation element 2 starts starts working.Now, the voltage that described plant-grid connection unit 4 exports equals the described starting resistor of the first operation element 2 and the conducting voltage sum of described partial pressure unit 11, and namely equal the starting resistor of described second operation element 3, the second operation element 3 starts at synchronization.Thus realize the first operation element 2 and the second operation element 3 synchronous averaging.
Preferably, described partial pressure unit 11 comprises Zener diode D1, and upper electric unit 12 comprises a resistance R1.The negative electrode of described Zener diode D1 is electrically connected with described cathode output end 41, and anode is electrically connected with described first operation element 2, and is electrically connected with the cathode output end 42 of plant-grid connection unit 4 by described resistance R1.The puncture voltage of described Zener diode D1 is the difference of the starting resistor of described second operation element 3 and the starting resistor of described first operation element 2.Thus after the voltage exported when described plant-grid connection unit 4 exceedes the puncture voltage of described Zener diode D1, Zener diode D1 conducting and have electric current to flow through described resistance R1, makes described resistance R1 two ends produce voltage.When the voltage rise that described plant-grid connection unit 4 exports is to when equaling the starting resistor sum of the puncture voltage of described Zener diode D1 and the first operation element 2, due to puncture voltage described in Zener diode D1 fixed partial pressure, namely clamper is in described puncture voltage, the voltage that described resistance R1 produces is the starting resistor of described first operation element 2, thus described first operation element 2 can be driven to start.
Seeing also Fig. 3, is the circuit block diagram of electronic installation 100 in the utility model one execution mode.In one embodiment, described electronic installation 100 also comprises motor 5 and inverter 6, the rotor 52 that described motor 5 comprises stator 51 and rotates relative to described stator 51.Described first operation element 2 is specially a position detector 21, and described second operation element 3 is specially a switch driver 22.Described electronic installation 100 can be any devices with motor 5 such as hair-dryer, dust catcher, electric tool, air-conditioning.
In the present embodiment, described plant-grid connection unit 4 is an AC/DC transducer, and for incoming transport power supply 200, and the supply voltage of form of communication AC power 200 provided is converted to direct current.Described inverter 6 is electrically connected between described plant-grid connection unit 4 and described motor 5.Described position detector 21 is for detecting the turned position of the rotor 52 of described motor 5.Described switch driver 22 is all electrically connected with described inverter 6, position detector 21, turned position for the described rotor 52 detected according to described position detector 21 drives described inverter 6 that the direct current that described plant-grid connection unit 4 produces is converted to alternating current, thus drives described rotor 52 to continue to rotate.
Wherein, described AC power 200 is mains supply, such as, be the mains supplies such as 120V (volt), 230V.
Please also refer to Fig. 4, it is the circuit block diagram that the electronic installation 100 in the utility model one execution mode is more concrete.Described motor 5 is preferably single-phase DC brushless motor, also comprise the first electrode tip 53 and the second electrode tip 54, described stator 51 comprises stator core and the single-phase winding be wrapped on stator core, and two of winding terminals are electrically connected with described first electrode tip 53, second electrode tip 54 respectively.Inverter 6 in the utility model is a H-bridge circuit, described inverter 6 is electrically connected between the cathode output end 41 of described plant-grid connection unit 4, cathode output end 42 and described first electrode tip 53, second electrode tip 54, for setting up the cathode output end 41 of plant-grid connection unit 4, the first supply path between cathode output end 42 and described first electrode tip 53, second electrode tip 54 or the second supply path.
Described position detector 21 produces the first triggering signal or the second triggering signal extremely described switch driver 22 for detecting the turned position of the rotor 52 of described motor 5.Described switch driver 22, when receiving the first triggering signal, drives described inverter 6 to set up the first supply path.Described switch driver 22, when receiving the second triggering signal, drives described inverter 6 to set up the second supply path.
Wherein, in described first supply path, cathode output end 41, the cathode output end 42 of described plant-grid connection unit 4 are electrically connected with described first electrode tip 53, second electrode tip 54 respectively.In described second supply path, cathode output end 41, the cathode output end 42 of described plant-grid connection unit 4 are electrically connected with described second electrode tip 54, first electrode tip 53 respectively.
In the present embodiment, described rotor 52 comprises permanent magnetism magnet and can rotate relative to described stator 51.Described position detector 21 is arranged near described motor 5, and produces described first triggering signal when detecting the N magnetic pole of rotor 52 and produce described second triggering signal when detecting the S magnetic pole of rotor 52.Thus, when described rotor 52 often turns to its N magnetic pole or S magnetic pole turns near position detector 21, described position detector 21 produces corresponding triggering signal, triggering described switch driver 22 drives described inverter 6 to set up corresponding supply path, the positive and negative of power supply that first electrode tip 53 of described motor 5 and the second electrode tip 54 are inputted changes, thus the sense of current passed through in the coil windings of stator 51 alternately change and the magnetic field that produces alternately change is gone to drive described rotor 52 to rotate constantly.Obviously, in disposable execution mode, described position detector 21 can produce described first triggering signal and produce described second triggering signal when detecting the N magnetic pole of rotor 52 when detecting the S magnetic pole of rotor 52.
Wherein, in the present embodiment, described motor 5 is specially a single-phase DC brushless motor, and stators and rotators has identical number of magnetic poles, and described number of magnetic poles is preferably not more than 6.
Concrete, as shown in Figure 4, in the present embodiment, described inverter 6 is a H-bridge circuit, comprises the first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4.Between the cathode output end 41 that described first semiconductor switch and the second semiconductor switch Q2 are series at described plant-grid connection unit 4 successively and cathode output end 42, between the cathode output end 41 that described 3rd semiconductor switch Q3 is same with the 4th semiconductor switch Q4 is series at described plant-grid connection unit 4 successively and cathode output end 42.That is, the branch road of described first semiconductor switch and the second semiconductor switch Q2 and the branch circuit parallel connection of described 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4 are between the cathode output end 41 and cathode output end 42 of described plant-grid connection unit 4.First electrode tip 53 of described motor 5 and the second electrode tip 54 are electrically connected between described first semiconductor switch Q1, the electrical connection node N1 of the second semiconductor switch Q2 and the electrical connection node N2 of described 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4 respectively.
Described switch driver 22 is all electrically connected with described first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4.Described switch driver 22, when receiving the first triggering signal, controls described first semiconductor switch Q1, the 4th semiconductor switch Q4 conducting and controls the second semiconductor switch Q2, the 3rd semiconductor switch Q3 to end.Now, first electrode tip 53 of described motor 5 is electrically connected with the cathode output end 41 of plant-grid connection unit 4 by the first semiconductor switch Q1 of described conducting, and the second electrode tip 54 of described motor 5 is electrically connected with the cathode output end 42 of plant-grid connection unit 4 by the 4th semiconductor switch Q4 of conducting.Thus now described inverter 6 forms described first supply path.
Described switch driver 22, when receiving the second triggering signal, controls described second semiconductor switch Q2, the 3rd semiconductor switch Q3 conducting and controls the first semiconductor switch Q1, the 4th semiconductor switch Q4 to end.Now, first electrode tip 53 of described motor 5 is electrically connected with the cathode output end 42 of plant-grid connection unit 4 by the second semiconductor switch Q2 of described conducting, and the second electrode tip 54 of described motor 5 is electrically connected with the cathode output end 41 of plant-grid connection unit 4 by the 3rd semiconductor switch Q3 of conducting.Thus now described inverter 6 forms described second supply path.
Thus, as previously mentioned, generation first triggering signal is replaced and the second triggering signal makes described switch driver 22 drive described inverter 6 alternately to set up described first supply path and the second supply path due to described position detector 21, thus the sense of current flow through in described stator 51 is alternately changed, and drive described rotor 52 to continue to rotate.
In the present embodiment, described switch driver 22 is a mosfet driver.At least one in described four semiconductor switchs is MOSFET pipe.Such as, described first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4 are MOSFET pipe, or wherein part is MOSFET pipe, and another part is IGBT pipe or BJT triode.Grid or the base stage of described switch driver 22 and described first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4 are electrically connected, and control described first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the corresponding conducting of the 4th semiconductor switch Q4 or cut-off for generation of corresponding control signal.
See also Fig. 5, be electronic installation 100 more specifically circuit block diagram described in the utility model one execution mode, illustrate the concrete structure of switch driver 22.As shown in Figure 5, described switch driver 22 comprises the first half-bridge driver 221, second half-bridge driver 222, first inverter 223 and the second inverter 224.Described position detector 21 comprises the first trigger end 211 and the second trigger end 212.Described first half-bridge driver 221 comprises first input end IN1, the second input IN2, the first output O1 and the second output O2.Described second half-bridge driver 222 comprises first input end IN3, the second input IN4, the first output O3 and the second output O4.
First trigger end 211 of described position detector 21 is electrically connected with the second input IN2 of described first half-bridge driver 221, and is electrically connected with the first input end IN3 of described second half-bridge driver 222 by the second inverter 224.Second trigger end 212 of described position detector 21 is electrically connected with the first input end IN1 of described first half-bridge driver 221 by the first inverter 223, and described second trigger end 212 is also electrically connected with the second input IN3 of described second half-bridge driver 222.
First output O1 of described first half-bridge driver 221 is electrically connected with the first semiconductor switch pipe Q1, controls the first Q1 conducting of semiconductor switch pipe or cut-off for exporting corresponding control signal.Second output O2 of described first half-bridge driver 221 is electrically connected with the second semiconductor switch pipe Q2, controls the second Q2 conducting of semiconductor switch pipe or cut-off for exporting corresponding control signal.First output O3 of described second half-bridge driver 222 is electrically connected with the 3rd semiconductor switch pipe Q3, controls the 3rd Q3 conducting of semiconductor switch pipe or cut-off for exporting corresponding control signal.Second output O4 of described second half-bridge driver 222 is electrically connected with the 4th semiconductor switch pipe Q4, controls the 4th Q4 conducting of semiconductor switch pipe or cut-off for exporting corresponding control signal.
Wherein, the voltage of described first input end IN1 input is followed in the output of the first output O1 of described first half-bridge driver 221, and the output of the second output O1 is contrary with the voltage that described second input IN2 inputs.In like manner, the input of its first input end IN3 is followed in the output of the first output O3 of described second half-bridge driver 222, and the output of the second output O4 is contrary with the input of described second input IN4.
When described position detector 21 detects N magnetic pole, the first trigger end 211 of position detector 21 and the second trigger end 212 export high level and low level respectively, that is, position detector 21 exports first triggering signal of " 10 ".When described position detector 21 detects S magnetic pole, the first trigger end 211 of position detector 21 and the second trigger end 212 output low level and high level respectively, namely position detector 21 exports second triggering signal of " 01 ".
In one embodiment, described first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4 are high level actuating switch, such as, be NMOSFET, NPNBJT etc.
Thus, when described position detector 21 detects N magnetic pole, when exporting high level and low level respectively by the first trigger end 211 and the second trigger end 212, the high level that described first trigger end 211 exports is sent to the second input IN2 of described first half-bridge driver 221, and is sent to the first input end IN3 of the second half-bridge driver 222 after being inverted into low level by the second inverter 224.The low level that described first trigger end 211 exports is sent to the second input IN4 of described second half-bridge driver 222, and is sent to the first input end IN1 of the first half-bridge driver 221 after being inverted into high level by the first inverter 223.
Now, the first input end IN1 of described first half-bridge driver 221, the equal input high level of the second input IN2, the first input end IN3 of described second half-bridge driver 222, the equal input low level of the second input IN4.As previously mentioned, the first output of half-bridge driver follows the voltage of first input end, and the second output is contrary with the voltage of first input end.Thus the first output O1 and the second output O2 of described first half-bridge driver 221 export high level and low level respectively, control described first semiconductor switch Q1 conducting and control described second semiconductor switch Q2 to end.First output O3 of described second half-bridge driver 222 and the second output O4 is output low level and high level respectively, controls described 3rd semiconductor switch Q3 and ends and control described 4th semiconductor switch Q4 conducting.
Now, first electrode tip 53 of motor 5 is electrically connected with the cathode output end 41 of plant-grid connection unit 4 by the first semiconductor switch Q1 of described conducting, and the second electrode tip 54 of described motor 5 is electrically connected with the cathode output end 42 of plant-grid connection unit 4 by the 4th semiconductor switch Q4 of conducting.Thus described inverter 6 forms described first supply path, the electric current flowing through the stator 51 of motor 5 be first-class to.
When described position detector 21 detects S magnetic pole, when distinguishing output low level and high level by the first trigger end 211 and the second trigger end 212, the low level that described first trigger end 211 exports is sent to the second input IN2 of described first half-bridge driver 221, and is sent to the first input end IN3 of the second half-bridge driver 222 after being inverted into high level by the second inverter 224.The high level that described second trigger end 212 exports is sent to the second input IN4 of described second half-bridge driver 222, and is sent to the first input end IN1 of the first half-bridge driver 221 after being inverted into low level by the first inverter 223.
Now, the first input end IN1 of described first half-bridge driver 221, the equal input low level of the second input IN2, the first input end IN3 of described second half-bridge driver 222, the equal input high level of the second input IN4.Accordingly, the first output O1 of described first half-bridge driver 221 and the second output O2 is output low level and high level respectively, controls described first semiconductor switch Q1 and ends and control described second semiconductor switch Q2 conducting.First output O3 and the second output O4 of described second half-bridge driver 222 export high level and low level respectively, control described 3rd semiconductor switch Q3 conducting and control described 4th semiconductor switch Q4 to end.
Now, first electrode tip 53 of described motor 5 is electrically connected with the cathode output end 42 of plant-grid connection unit 4 by the second semiconductor switch Q2 of described conducting, and the second electrode tip 54 of described motor 5 is electrically connected with the cathode output end 41 of plant-grid connection unit 4 by the 3rd semiconductor switch Q3 of conducting.Thus described inverter 6 forms described second supply path, the electric current flowing through the stator 51 of motor 5 be with first-class to contrary second to.
Wherein, the high level that the effect of described first half-bridge driver 221 and the second half-bridge driver 222 exports described position detector 21 or low level are boosted, and manage to drive the MOSFET needing large driven current density.Obviously, when in described inverter 6 without MOSFET pipe time, can by the first semiconductor switch Q1, the second semiconductor switch Q2, the 3rd semiconductor switch Q3 and the 4th semiconductor switch Q4 conducting or cut-off described in described position detector 21 Direct driver, and without the need to described first half-bridge driver 221 and the second half-bridge driver 222.Such as, first trigger end 211 of position detector 21 is electrically connected with the first semiconductor switch Q1 and the 4th semiconductor switch Q4, control the first semiconductor switch Q1 and the 4th semiconductor switch Q4 conducting or cut-off simultaneously, second trigger end 212 of position detector 21 is electrically connected with the second semiconductor switch Q2 and the 3rd semiconductor switch Q3, controls the second semiconductor switch Q2 and the 3rd semiconductor switch Q3 conducting or cut-off simultaneously.
In one embodiment, described first half-bridge driver 221 specifically can be IR2103 chip with described second half-bridge driver 222.Described position detector 21 is a Hall effect controller, comprises Hall element and controls module accordingly, specifically can be AH284 chip.Obviously, described position detector 21 also can comprise current sensor and corresponding control module etc., determines N magnetic pole and S magnetic pole and export corresponding control signal by the change of detecting current.Described first half-bridge driver 221, described second half-bridge driver 222 and described position detector 21 also can be the chip of other any appropriate, and the above-mentioned chip exemplified is as just the concrete reference implemented.
Wherein, when switch driver 22 comprises the first half-bridge driver 221 and the second half-bridge driver 222, the starting resistor of above-mentioned second operation element 2 (i.e. switch driver 22) refers to the starting resistor of described first half-bridge driver 221 and the second half-bridge driver 222.
Wherein, the position relationship between the element shown in the utility model institute drawings attached does not represent its arrangement position in the product, is only position relationship electrically and in logic.
The above, be only better embodiment of the present utility model, is not to do any pro forma restriction to the utility model.In addition, those skilled in the art also can do other change in the utility model spirit, and certainly, these changes done according to the utility model spirit, all should be included within the utility model scope required for protection.
Such as, in more embodiments, the start-up time can also selecting to provide in above-described embodiment, other the suitable delay circuits beyond control circuit, made time delay start-up time of the first operation element to synchronous with the start-up time of the second operation element.
Claims (15)
1. an electronic installation, comprise motor and motor-drive circuit, described motor-drive circuit comprises the first operation element and the second operation element, it is characterized in that, described motor-drive circuit also comprises a delay circuit, for controlling time delay start-up time of the first operation element in described electronic installation to synchronous with the start-up time of the second operation element.
2. electronic installation as claimed in claim 1, it is characterized in that, described electronic installation also comprises a plant-grid connection unit, described plant-grid connection unit comprises cathode output end and cathode output end, and described plant-grid connection unit is for accessing a supply voltage and exporting a specific voltage from cathode output end; Described delay circuit is connected with the first operation element, and between the series arm of delay circuit and the first operation element and this second operation element cathode output end that is parallel to plant-grid connection unit and cathode output end, described delay circuit is supplied to the first operation element after adjusting for the voltage exported the cathode output end of plant-grid connection unit, the voltage rise making cathode output end be supplied to the second operation element, to when equaling the starting resistor of the second operation element, is supplied to the voltage rise of the first operation element to the starting resistor equaling the first operation element.
3. electronic installation as claimed in claim 2, it is characterized in that, described delay circuit comprises partial pressure unit and upper electric unit, described partial pressure unit and power on units in series between the cathode output end and cathode output end of plant-grid connection unit, described partial pressure unit there is a conducting voltage and apply conducting when voltage is thereon more than or equal to described conducting voltage and clamper in described conducting voltage, described upper electric unit is used for after partial pressure unit conducting, producing voltage and being supplied to described first operation element; Wherein, the conducting voltage of described partial pressure unit and the starting resistor sum of described first operation element equal the starting resistor of described second operation element.
4. electronic installation as claimed in claim 3, it is characterized in that, described partial pressure unit comprises Zener diode, upper electric unit comprises a resistance, the negative electrode of described Zener diode is electrically connected with described cathode output end, anode is electrically connected with described first operation element, and is electrically connected with the cathode output end of plant-grid connection unit by described resistance, and the puncture voltage of described Zener diode is the difference of the starting resistor of described second operation element and the starting resistor of described first operation element.
5. electronic installation as claimed in claim 2, it is characterized in that, described electronic installation also comprises the inverter be connected between described plant-grid connection unit and described motor, described first operation element is that position detector is for detecting the turned position of the rotor of described motor, described second operation element is switch driver, the turned position that described switch driver is used for the described rotor detected according to described position detector drives described inverter that the direct current that described plant-grid connection unit produces is converted to alternating current, thus drives described rotor to continue to rotate.
6. electronic installation as claimed in claim 1, it is characterized in that, the starting resistor of described first operation element is less than the starting resistor of described second operation element.
7. electronic installation as claimed in claim 5, it is characterized in that, described inverter is the H-bridge circuit comprising some semiconductor switch pipes, and described semiconductor switch pipe is MOSFET pipe, and described switch driver is a mosfet driver.
8. electronic installation as claimed in claim 7, it is characterized in that, switch driver comprises the first half-bridge driver, the second half-bridge driver, the first inverter and the second inverter, described position detector comprises the first trigger end and the second trigger end, described first half-bridge driver comprises first input end, the second input, the first output and the second output, and described second half-bridge driver comprises first input end, the second input, the first output and the second output; First trigger end of described position detector is connected with the second input of described first half-bridge driver, and is connected with the first input end of described second half-bridge driver by the second inverter; Second trigger end of described position detector is connected with the first input end of described first half-bridge driver by the first inverter, and described second trigger end is also connected with the second input of described second half-bridge driver; First output, second output of the first output of described first half-bridge driver, the second output and described second half-bridge driver are connected with the first semiconductor switch pipe, the second semiconductor switch pipe, the 3rd semiconductor switch pipe and the 4th semiconductor switch pipe respectively, control first, second, third and the 4th conducting of semiconductor switch pipe or cut-off for exporting corresponding control signal respectively.
9. electronic installation as claimed in claim 8, it is characterized in that, the voltage of the first input end input of described first half-bridge driver is followed in the output of the first output of described first half-bridge driver, and the output of the second output of described first half-bridge driver is contrary with the voltage that the second input of described first half-bridge driver inputs; The input of the first input end of described second half-bridge driver is followed in the output of the first output of described second half-bridge driver, and the output of the second output of described second half-bridge driver is contrary with the input of the second input of described second half-bridge driver.
10. electronic installation as claimed in claim 9, it is characterized in that, when described position detector detects N magnetic pole, first trigger end and second trigger end of position detector export high level and low level respectively, thus export first triggering signal of " 10 ", when described position detector detects S magnetic pole, the first trigger end of position detector and the second trigger end output low level and high level respectively, thus export second triggering signal of " 01 ".
11. electronic installations as claimed in claim 1, it is characterized in that, described motor is single-phase DC brushless motor.
12. 1 kinds of circuit, comprise the first operation element, the second operation element and start-up time control circuit, it is characterized in that, the starting resistor of described first operation element is less than the starting resistor of described second operation element, and described start-up time, the start-up time of the first operation element in described electronic installation was adjusted to synchronous with the start-up time of the second operation element for controlling by control circuit.
13. circuit as claimed in claim 12, it is characterized in that, described start-up time, control circuit was connected with the first operation element, and start-up time control circuit and the branch road of the first operation element and this second operation element be parallel between a direct voltage, described start-up time, control circuit was supplied to the first operation element after being used for adjusting described direct voltage, the voltage rise making to be supplied to the second operation element, to when equaling the starting resistor of the second operation element, is supplied to the voltage rise of the first operation element to the starting resistor equaling the first operation element.
14. circuit as claimed in claim 13, it is characterized in that, described start-up time, control circuit comprised partial pressure unit and upper electric unit, described partial pressure unit and power on units in series between the cathode output end and cathode output end of the plant-grid connection unit of electronic installation, described partial pressure unit there is a conducting voltage and apply conducting when voltage is thereon more than or equal to described conducting voltage and clamper in described conducting voltage, described upper electric unit is used for after partial pressure unit conducting, producing voltage and being supplied to described first operation element; Wherein, the conducting voltage of described partial pressure unit and the starting resistor sum of described first operation element equal the starting resistor of described second operation element.
15. circuit as claimed in claim 14, it is characterized in that, described partial pressure unit comprises Zener diode, upper electric unit comprises a resistance, the negative electrode of described Zener diode is electrically connected with described cathode output end, anode is electrically connected with described first operation element, and is electrically connected with the cathode output end of plant-grid connection unit by described resistance, and the puncture voltage of described Zener diode is the difference of the starting resistor of described second operation element and the starting resistor of described first operation element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778784.0U CN205092797U (en) | 2015-10-09 | 2015-10-09 | Electron device and circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778784.0U CN205092797U (en) | 2015-10-09 | 2015-10-09 | Electron device and circuit |
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| Publication Number | Publication Date |
|---|---|
| CN205092797U true CN205092797U (en) | 2016-03-16 |
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| CN201520778784.0U Expired - Fee Related CN205092797U (en) | 2015-10-09 | 2015-10-09 | Electron device and circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571752A (en) * | 2015-10-09 | 2017-04-19 | 德昌电机(深圳)有限公司 | Electronic device and circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571752A (en) * | 2015-10-09 | 2017-04-19 | 德昌电机(深圳)有限公司 | Electronic device and circuit |
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