CN213043609U - Drive circuit of electronic equipment and electronic equipment - Google Patents
Drive circuit of electronic equipment and electronic equipment Download PDFInfo
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- CN213043609U CN213043609U CN202022318449.6U CN202022318449U CN213043609U CN 213043609 U CN213043609 U CN 213043609U CN 202022318449 U CN202022318449 U CN 202022318449U CN 213043609 U CN213043609 U CN 213043609U
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Abstract
The utility model discloses an electronic equipment's drive circuit and electronic equipment, electronic equipment's drive circuit includes: the device comprises a microswitch, an indicator light, a voltage division circuit and a motor; the microswitch is connected with the indicator light and used for switching on a power supply to supply power to the indicator light when the microswitch is started; the indicating lamps are connected to two ends of a normally closed pin of the micro switch in parallel and used for indicating the working state of the electronic equipment, wherein the number of the indicating lamps is the same as that of the micro switch; the voltage division line is connected with the indicator light and arranged at the rear end of the indicator light; the motor is connected in series with the rear end of the normally open pin of the microswitch and used for providing power for the electronic equipment. Adopt the utility model provides a scheme can enough instruct electronic equipment's operating condition through the pilot lamp, saves the inner space of cost and equipment again.
Description
Technical Field
The utility model relates to the field of electronic technology, in particular to electronic equipment's drive circuit and electronic equipment.
Background
Most of the current schemes for arranging the indicator lamps in the handheld products are used for prompting such as overheating of the equipment or prompting error of the equipment, so that the on-off of the indicator lamps is generally uncontrollable.
For example, chinese patent publication No. CN211299648U discloses a hand-held blender, which comprises a motor assembly installed in a housing, a surgical motor assembly including a heat conducting fin in contact with the motor, a temperature controller connected to the heat conducting fin, and a LED indicator temperature controller including a conductor attached to a spring plate of the temperature controller, wherein the temperature of the conductor is sensitive to the increase of the working current of the motor. The temperature controller is at least switched on or switched off according to the temperature change of the conductor, and the LED indicating lamp is lightened when the temperature controller is switched off. In this patent, the lamp and buzzer are passive, and the lamp is turned on and alarms only when the product is overheat-protected, and is uncontrollable. And can only realize that a group of lamps are lighted, if there are two or more groups of lamps, then mutual interference, unable normal work.
If the indicator lamp is controllable, a chip for controlling the on and off of the indicator lamp needs to be additionally arranged, and the chip needs a power supply circuit to supply power to work. Such a solution has many peripheral components, high cost, and requires a software program to be designed, which is rather complicated. And the electronic board has a large area size to be able to hold such multiple elements, it is difficult to provide a sufficient space size for the electronic board for the handheld product with a small external size.
In view of this, it is an urgent technical problem to provide a driving circuit for an electronic device to control the on/off of an indicator light through a switch of the electronic device itself, and to save the cost and the internal space of the device while indicating the working state of the electronic device through the indicator light without additionally providing a control chip.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide an electronic equipment's drive circuit and electronic equipment can enough indicate electronic equipment's operating condition, saves the inner space of cost and equipment simultaneously.
In order to solve the technical problem, the embodiment of the utility model adopts the following technical scheme: a drive circuit of an electronic device, comprising: the device comprises a microswitch, an indicator light, a voltage division circuit and a motor;
the microswitch is connected with the indicator light and used for switching on a power supply to supply power to the indicator light when the microswitch is started;
the indicating lamps are connected to two ends of a normally closed pin of the micro switch in parallel and used for indicating the working state of the electronic equipment, wherein the number of the indicating lamps is the same as that of the micro switch;
the voltage division line is connected with the indicator light and arranged at the rear end of the indicator light;
the motor is connected in series with the rear end of the normally open pin of the microswitch and used for providing power for the electronic equipment.
The beneficial effects of the utility model reside in that: the micro-gap switch with the pilot lamp is connected for the bright of pilot lamp goes out and is correlated with micro-gap switch, thereby makes the bright of pilot lamp go out controllable, and need not additionally to set up control chip, and, the motor series connection in micro-gap switch's normally open foot rear end, consequently, when micro-gap switch opened, can enough open the pilot lamp, also can open the motor, make the pilot lamp can instruct electronic equipment's operating condition, consequently, adopt above-mentioned electronic equipment's drive circuit, can enough pass through the operating condition of pilot lamp instruction electronic equipment, save the inner space of cost and equipment again.
In one embodiment, the driving circuit of the electronic device further includes:
and the protective tube is arranged at the front end of the drive circuit of the electronic equipment and is used for carrying out overcurrent protection on the drive circuit of the electronic equipment.
The beneficial effect of this embodiment lies in: the protective tube is arranged at the front end of the driving circuit of the electronic equipment, so that overcurrent protection of the driving circuit can be realized through the protective tube, the burning probability of the driving circuit is reduced, and the service lives of the driving circuit and the electronic equipment are prolonged.
In one embodiment, the voltage divider circuit further comprises:
and the first diode is connected with the indicator lamp in series and is used for blocking reverse current from flowing into the indicator lamp.
The beneficial effect of this embodiment lies in: the voltage division line comprises a first diode which is connected with the indicator lamp in series, so that reverse current can be blocked from flowing back into the indicator lamp, and the protective effect on the indicator lamp is realized.
In one embodiment, the voltage divider circuit further comprises:
and the preset voltage division resistors are arranged at the rear end of the first diode and are used for dividing voltage of the indicator lamp.
The beneficial effect of this embodiment lies in: the embodiment can be provided with a plurality of voltage dividing resistors, so that the phenomenon that one voltage dividing resistor is broken down to lose the voltage dividing effect is avoided.
In one embodiment, the driving circuit of the electronic device further includes:
and the rectifier bridge is connected with the motor and used for rectifying the commercial power into direct current matched with the motor.
The beneficial effect of this embodiment lies in: the drive circuit of the electronic equipment further comprises a rectifier bridge, and the rectifier bridge can rectify mains supply into direct current matched with the motor, so that the normal operation of the motor is ensured.
In one embodiment, the driving circuit of the electronic device further includes:
and the thermistor is respectively connected with the voltage dividing line and the motor in series, and is arranged at the rear ends of the voltage dividing line and the motor and used for protecting the voltage dividing line and the motor.
The beneficial effect of this embodiment lies in: the driving circuit of the electronic equipment further comprises a thermistor which is connected in series with the voltage dividing line and the rear end of the motor and used for protecting the voltage dividing line and the motor so as to protect the driving circuit of the electronic equipment.
In one embodiment, the driving circuit of the electronic device further includes:
and the adjusting circuit is connected with the motor and is used for adjusting the rotating speed of the motor.
The beneficial effect of this embodiment lies in: in the drive circuit of the electronic equipment, a regulating circuit is additionally arranged and is connected with the motor to regulate the rotating speed of the motor, so that the operating speed of the electronic equipment can be flexibly regulated based on the regulating circuit.
In one embodiment, the voltage divider circuit comprises:
and the power supply capacitor is used for charging when the micro switch is conducted and discharging to the voltage division line when the micro switch is fully charged.
The beneficial effect of this embodiment lies in: the voltage division line is also provided with a power supply capacitor, the power supply capacitor can supply power to the indicator lamp, and on the other hand, the standby power of the electronic equipment is reduced because the capacitor does not consume power in the standby process.
In one embodiment, the voltage divider circuit further comprises:
and the second diode is used for being respectively connected with the indicator lamp and the power supply capacitor and is used for conducting when the power supply capacitor discharges.
The beneficial effect of this embodiment lies in: the voltage-dividing circuit is provided with a second diode D3, which can be connected to the supply capacitor CX2 and forms a discharge loop when the supply capacitor CX2 discharges.
The utility model also provides an electronic equipment, include the drive circuit of electronic equipment as above-mentioned arbitrary embodiment.
Drawings
Fig. 1 is a schematic structural diagram of a driving circuit of an electronic device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a driving circuit of an electronic device with a power supply capacitor according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a portion of the circuit shown in fig. 1, and in particular, a schematic diagram of the regulating circuit shown in fig. 1.
Description of reference numerals:
a microswitch: SW1 and SW 2;
an indicator light: LED1 and LED 2;
a motor: a MOTOR; a protective tube: f1; firing line: l; zero line: n;
a first diode: d1 and D2;
voltage-dividing resistance: r5, R6, R7, R8, R9 and R10;
a rectifier bridge: BR 1; a thermistor: NTC 1; a power supply capacitor: CX 2; a second diode: D3.
Detailed Description
Various aspects and features of the present invention are described herein with reference to the drawings.
It is to be understood, therefore, that the foregoing description is not to be taken in a limiting sense, but is made merely as an example of the embodiments. Other modifications will occur to those skilled in the art which are within the scope and spirit of this invention.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with a general description of the invention given above, and the detailed description of the embodiments given below, serve to explain the principles of the invention.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also understood that, although the present invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present invention will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present invention are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the invention in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.
The description may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the present invention.
For better understanding of the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, an embodiment of the present invention provides a driving circuit of an electronic device, including: the device comprises a microswitch SW1, a microswitch SW2, an indicator light LED1, an indicator light LED2, a voltage division line and a MOTOR;
the microswitch SW1 is connected with the indicator light LED1, and the microswitch SW2 is connected with the indicator light LED2 and is used for switching on a power supply to supply power to the indicator light LED1 and the indicator light LED2 when the microswitch is switched on;
the indicator light LED1 is connected in parallel to two ends of the normally closed pin of the microswitch SW1, and the indicator light LED2 is connected in parallel to two ends of the normally closed pin of the microswitch SW2 and is used for indicating the working state of the electronic equipment, that is, the number of the indicator lights is the same as that of the microswitches;
the voltage division line is connected with the indicator light LED1 and the indicator light LED2 and is arranged at the rear ends of the indicator light LED1 and the indicator light LED 2;
the MOTOR is connected in series with the rear ends of the normally open pins of the micro switch SW1 and the micro switch SW2 and used for providing power for the electronic equipment after the micro switch SW1 or the micro switch SW2 is pressed.
Specifically, the microswitch SW1 is connected with the indicator light LED1, and the microswitch SW2 is connected with the indicator light LED2, and is used for switching on a power supply to supply power to the indicator light LED1 and the indicator light LED2 when the microswitch is turned on; that is, in the present embodiment, the on/off of the indicator LED1 and the indicator LED2 is controlled directly by the microswitch SW1 and the microswitch SW 2.
The indicator light LED1 and the indicator light LED2 are connected in parallel to two ends of a normally closed pin of the microswitch SW1 and the microswitch SW2 and are used for indicating the working state of the electronic equipment, wherein the number of the indicator lights is the same as that of the microswitches; because the electronic equipment has two microswitches which are a microswitch SW1 and a microswitch SW2 respectively, two indicator lights which are an indicator light LED1 and an indicator light LED2 respectively are arranged and are connected with the microswitch SW1 and the microswitch SW2 respectively, after the power supply is switched on, the whole machine is powered on, and in a standby mode, the indicator light LED1 and the indicator light LED2 in the figure are respectively short-circuited by the microswitch SW1 and the microswitch SW2 and are in an off state.
The voltage division line is connected with the indicator light LED1 and the indicator light LED2 and is arranged at the rear ends of the indicator light LED1 and the indicator light LED 2; the voltage dividing circuit is composed of resistors R9 and R10, when any one key of a microswitch SW1 and a microswitch SW2 is pressed down, the whole machine starts to work, taking SW2 as an example: when the microswitch SW2 is pressed, pins 2 and 1 of the microswitch SW2 are turned from the on state to the off state, and pins 2 and 3 are turned from the off state to the on state. At this time, the current returns to the zero line N from the live line L terminal through the fuse F1, the resistor R6, the indicator LED2, the first diode D1, the voltage dividing resistors R9 and R10, and the thermistor NTC1, so that the indicator LED2 is turned on from the off state.
The MOTOR is connected in series with the rear ends of the normally open pins of the micro switch SW1 and the micro switch SW2 and used for providing power for the electronic equipment. The MOTOR is connected with a rectifier bridge BR1, the rectifier bridge BR1 rectifies the mains supply into direct current adapted to the MOTOR, and the MOTOR and a voltage division circuit are connected in parallel in a post-stage circuit of the micro switch SW1 or the micro switch SW 1. After the switch is pressed, the current flowing to the MOTOR starts from the end L of the live wire, returns to the zero line N through the fuse F1, the pins 2 and 3 of the microswitch SW2, the rectifier bridge BR1 and the thermistor NTC1, and enables the MOTOR to start to work. When the microswitch SW2 is released, the MOTOR stops working, the LED2 is turned off, and the state returns to the standby state.
The beneficial effects of the utility model reside in that: the microswitch SW1 is connected with the indicator light LED1, the microswitch SW2 is connected with the indicator light LED2, the on and off of the indicator light are associated with the microswitch, the on and off of the indicator light are controllable, a control chip is not required to be additionally arranged, and the MOTOR MOTOR is connected in series with the rear ends of the normally-open pins of the microswitch SW1 and the microswitch SW2, so that when the microswitch SW1 and the microswitch SW2 are turned on, the indicator light LED1 and the indicator light LED2 can be turned on, the MOTOR MOTOR can also be turned on, the indicator light LED1 and the indicator light LED2 can indicate the working state of the electronic equipment, and therefore, by adopting the driving circuit of the electronic equipment, the working state of the electronic equipment can be indicated through the indicator light LED1 and the indicator light LED2, the cost and the internal space of the equipment are saved.
In one embodiment, the driving circuit of the electronic device further includes:
and the protective tube F1 is arranged at the front end of the drive circuit of the electronic equipment and is used for carrying out overcurrent protection on the drive circuit of the electronic equipment.
The beneficial effect of this embodiment lies in: the protective tube F1 is arranged at the front end of the drive circuit of the electronic equipment, so that overcurrent protection of the drive circuit can be realized through the protective tube F1, the probability of burning the drive circuit is reduced, and the service lives of the drive circuit and the electronic equipment are prolonged.
In one embodiment, the voltage divider circuit further comprises:
a first diode D1 and D2, a first diode D1 connected in series with the indicator LED1, and a first diode D2 connected in series with the indicator LED2 for blocking a reverse current from flowing into the indicator LED1 and the indicator LED 2.
In this embodiment, the first diodes include two diodes, D1 and D2, where D1 is the diode on the voltage dividing circuit corresponding to the LED2, and D2 is the diode on the voltage dividing circuit corresponding to the LED 1.
The beneficial effect of this embodiment lies in: the voltage division circuit comprises a first diode which is connected with the indicator lamp in series, so that reverse current can be blocked from flowing back into the indicator lamp, and the protective effect on the indicator lamp is realized.
In one embodiment, the voltage divider circuit further comprises:
and a plurality of preset voltage dividing resistors are arranged at the rear ends of the first diode D1 and the first diode D2 and are used for dividing voltage of the indicator light LED1 and the indicator light LED 2.
In this embodiment, the voltage dividing circuit further includes a plurality of preset voltage dividing resistors, and in general, the number of the voltage dividing resistors should be greater than 1, so that if one voltage dividing resistor is broken down, the other voltage dividing resistor can also realize a voltage dividing function. In fig. 1, the voltage-dividing resistances of the LED1 are R7 and R8, and the voltage-dividing resistances of the LED2 are R9 and R10. In fig. 2, the voltage-dividing resistances of the LED1 are R5, R9, and R10, and the voltage-dividing resistances of the LED2 are R6, R9, and R10, that is, the voltage-dividing resistances of the LED1 and the LED2 share portions, that is, R9 and R10.
The beneficial effect of this embodiment lies in: the embodiment can be provided with a plurality of voltage dividing resistors, so that the phenomenon that one voltage dividing resistor is broken down to lose the voltage dividing effect is avoided.
In one embodiment, the driving circuit of the electronic device further includes:
and the rectifier bridge BR1 is connected with the MOTOR and is used for rectifying the commercial power into direct current matched with the MOTOR.
The beneficial effect of this embodiment lies in: the drive circuit of the electronic device further comprises a rectifier bridge BR1, which can rectify the mains supply into direct current adapted to the MOTOR, thereby ensuring the normal operation of the MOTOR.
In one embodiment, the driving circuit of the electronic device further includes:
and the thermistor NTC1 is respectively connected with the voltage dividing line and the MOTOR MOTOR in series, and the thermistor NTC1 is arranged at the rear ends of the voltage dividing line and the MOTOR MOTOR and used for protecting the voltage dividing line and the MOTOR MOTOR.
In general, the current generated at the moment of power-up is much higher than that in normal use, in the present embodiment, therefore, the thermistor NTC1 is provided, which has a certain resistance value, for example, a resistance value of 5 Ω in a normal temperature state, and therefore, when the circuit is powered on, a resistor is connected in series in the circuit, the current during the power-on is restrained by the thermistor, therefore, the current during the power-on is reduced, thereby preventing the current from being overlarge, thereby preventing other elements from being burnt out, realizing the protection of the voltage division line and the motor and further realizing the protection of the driving circuit of the electronic equipment, and because the thermistor can generate heat after being electrified, the resistance of the thermistor can be rapidly reduced, so that the resistance of the thermistor can be almost ignored except for the larger resistance during power-on, and no extra electric quantity consumption is generated.
The beneficial effect of this embodiment lies in: the driving circuit of the electronic device further comprises a thermistor NTC1 connected in series to the rear ends of the voltage dividing line and the MOTOR MOTOR for protecting the voltage dividing line and the MOTOR MOTOR, so as to protect the driving circuit of the electronic device.
In one embodiment, the driving circuit of the electronic device further includes:
and the adjusting circuit is connected with the MOTOR and is used for adjusting the rotating speed of the MOTOR.
In this application, including the regulating circuit, this regulating circuit is connected with MOTOR for adjust MOTOR speed. Taking the regulating circuit in fig. 2 as an example and the regulating circuit in fig. 1 as an example, the regulating circuit in fig. 1 is partially cut out to form fig. 3, and as shown in fig. 3, after SW1 is pressed, 2 and 1 of SW1 are turned off and 2 and 3 are turned on. The current returns to the neutral line N from the live line through the R5-LED1-D2-R7-R8, so that the LED1 lamp is lightened. On the other hand, the current passes through 2-3 of SW1 to charge the capacitor C1, after C1 is charged, the voltage difference between the two ends is increased continuously, and when the voltage difference is larger than the trigger voltage of DB3, DB3 is conducted to form a loop between the two ends of C1, and the current is generated. The current passes through the A1 pole and the G pole of the SCR, so that the thyristors A1 and A2 are conducted. At this time, a large current passes through A1-A2 to energize the following motor. (only the positive half cycle of the alternating current is analyzed here, and the same is true for the negative half cycle). Wherein C1 in fig. 3 is a dacron capacitor. DB3 is a diac. The SCR is a triac. VR1 is an adjustable potentiometer. Through twisting the handle of potentiometre, can change the resistance at adjustable potentiometre VR1 both ends, the change of resistance can influence the size to C1 charging current, and charging current's size can influence C1 and fill the time of trigger voltage, and then influences the on-time of bidirectional thyristor SCR. The different starting-stopping time of the bidirectional silicon controlled rectifier SCR directly determines the working speed of the motor.
It is understood that the operation principle of the regulating circuit in fig. 2 is similar to that of the regulating circuit in fig. 1, and the detailed description is omitted here.
The beneficial effect of this embodiment lies in: in the drive circuit of the electronic equipment, a regulating circuit is additionally arranged and is connected with the MOTOR for regulating the rotating speed of the MOTOR, so that the operating speed of the electronic equipment can be flexibly regulated based on the regulating circuit.
In one embodiment, the voltage divider circuit comprises:
and a supply capacitor CX2 for charging when the microswitch SW1 and the microswitch SW2 are turned on and discharging to the voltage dividing line when fully charged.
Different from the embodiment corresponding to fig. 1, in this embodiment, a capacitor CX2 is provided in the voltage dividing line, as shown in fig. 2, after the power is turned on, the whole device is powered on, and in the standby mode, the indicator light LED1 and the indicator light LED2 in fig. 2 are short-circuited by the micro switch SW1 and the micro switch SW2, respectively, and are in an off state. When any one of the keys SW1 and SW2 is pressed, the whole machine starts to work, taking SW2 as an example: when the microswitch SW2 is pressed, pins 2 and 1 of the microswitch SW2 are turned from the on state to the off state, and pins 2 and 3 are turned from the off state to the on state. At this time, the current returns to the neutral line N from the live line L terminal through the fuse F1, the resistor R7, the indicator LED2, the first diode D1, the resistor R5, the capacitor CX2, the voltage dividing resistors R9 and R10, and the thermistor NTC1, so that the indicator LED2 is turned on from the off state. Meanwhile, the current flowing to the MOTOR starts from the L end of the live wire, returns to the zero line N through a fuse F1, pins 2 and 3 of a microswitch SW2, a rectifier bridge BR1 and a thermistor NTC1, and enables the MOTOR to start to work. When the microswitch SW2 is released, the MOTOR stops working, the LED2 is turned off, and the state returns to the standby state.
In this scheme, owing to increased electric capacity CX2, this electric capacity is supplied power for the LED on the one hand, and on the other hand can reduce standby power. The scheme can meet the requirement that the standby power of the product is below 0.5W under the standard of GS (Germany Safety).
The beneficial effect of this embodiment lies in: the voltage division line is also provided with a power supply capacitor CX2, the power supply capacitor CX2 can supply power to the indicator light LED1 and the indicator light LED2, and on the other hand, the standby power of the electronic equipment is reduced because the capacitor does not consume power in the standby process.
In one embodiment, as shown in fig. 2, the voltage dividing circuit further includes:
and a second diode D3, connected to the indicator light LED1, the indicator light LED2 and the power supply capacitor CX2, for conducting when the power supply capacitor CX2 discharges.
The second diode D3 is a diode conducting in a single direction, the commercial power is usually ac power, the positive half cycle of the ac power flows from the live line L to the neutral line N, and the negative half cycle flows from the neutral line N to the live line L, taking fig. 2 as an example, when the positive half cycle of the ac power passes through the fuse F1, the voltage dividing resistor R7, the indicator light LED2, the first diode D1, the voltage dividing resistor R5, the power supply capacitor CX2, the voltage dividing resistor R9, the voltage dividing resistor R10 and the thermistor NTC1, but when the negative half cycle occurs, the current flowing from the live line of the neutral line N to the L cannot pass through the first diode D1 and the first diode D2, so a new line, i.e. a line where D3 is located, is required to enable the current of the negative half cycle to flow from the neutral line N to the live line L, it can be understood that the flow of the current of the negative half cycle flows from the neutral line N, the thermistor R1, the voltage dividing resistor, A second diode D3, a fuse F1, and a live line L.
In this application, the effect of setting D3 is that the positive half cycle prevents current from passing through the line on which D3 is located, allowing current to pass through the indicator light. And enables the current of the negative half cycle to flow from the neutral line N to the live line L, thereby forming a discharge loop.
Since the function of the second diode D3 in fig. 1 is similar to that of the second diode D3 in fig. 2, the description thereof is omitted here.
The beneficial effect of this embodiment lies in: the voltage-dividing circuit is provided with a second diode D3, which can be connected to the supply capacitor CX2 and forms a discharge loop when the supply capacitor CX2 discharges.
The utility model also provides an electronic equipment, include the drive circuit of electronic equipment as above-mentioned arbitrary embodiment.
The utility model discloses in, directly use micro-gap switch SW1 and micro-gap switch SW2 self's switching, realize pilot lamp LED1 and pilot lamp LED2 bright control and MOTOR MOTOR's work, stop.
Software program control is not required while reducing the number of peripheral circuit elements. The circuit is simple, the cost is low, the structure is small and exquisite, and the application range is wide.
In the description of the present specification, the terms "mounted," "connected," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A driving circuit of an electronic device, comprising: the device comprises a microswitch, an indicator light, a voltage division circuit and a motor;
the microswitch is connected with the indicator light and used for switching on a power supply to supply power to the indicator light when the microswitch is started;
the indicating lamps are connected to two ends of a normally closed pin of the micro switch in parallel and used for indicating the working state of the electronic equipment, wherein the number of the indicating lamps is the same as that of the micro switch;
the voltage division line is connected with the indicator light and arranged at the rear end of the indicator light;
the motor is connected in series with the rear end of the normally open pin of the microswitch and used for providing power for the electronic equipment.
2. The drive circuit of an electronic device according to claim 1, further comprising:
and the protective tube is arranged at the front end of the drive circuit of the electronic equipment and is used for carrying out overcurrent protection on the drive circuit of the electronic equipment.
3. The driving circuit of an electronic device according to claim 1, wherein the voltage dividing line further comprises:
and the first diode is connected with the indicator lamp in series and is used for blocking reverse current from flowing into the indicator lamp.
4. The driving circuit of an electronic device according to claim 3, wherein the voltage dividing line further comprises:
and the preset voltage division resistors are arranged at the rear end of the first diode and are used for dividing voltage of the indicator lamp.
5. The drive circuit of an electronic device according to claim 1, further comprising:
and the rectifier bridge is connected with the motor and used for rectifying the commercial power into direct current matched with the motor.
6. The drive circuit of an electronic device according to claim 1, further comprising:
and the thermistor is respectively connected with the voltage dividing line and the motor in series, and is arranged at the rear ends of the voltage dividing line and the motor and used for protecting the voltage dividing line and the motor.
7. The drive circuit of an electronic device according to claim 1, further comprising:
and the adjusting circuit is connected with the motor and is used for adjusting the rotating speed of the motor.
8. The drive circuit of an electronic device according to claim 1, wherein the voltage dividing line includes:
and the power supply capacitor is used for charging when the micro switch is conducted and discharging to the voltage division line when the micro switch is fully charged.
9. The driving circuit of an electronic device according to claim 8, wherein the voltage dividing line further comprises:
and the second diode is used for being respectively connected with the indicator lamp and the power supply capacitor and is used for conducting when the power supply capacitor discharges.
10. An electronic device characterized by comprising a drive circuit of the electronic device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318449.6U CN213043609U (en) | 2020-10-16 | 2020-10-16 | Drive circuit of electronic equipment and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318449.6U CN213043609U (en) | 2020-10-16 | 2020-10-16 | Drive circuit of electronic equipment and electronic equipment |
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| CN213043609U true CN213043609U (en) | 2021-04-23 |
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| CN202022318449.6U Active CN213043609U (en) | 2020-10-16 | 2020-10-16 | Drive circuit of electronic equipment and electronic equipment |
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