CN214380714U - Control circuit for electroless hand-pull starting of direct-current generator - Google Patents
Control circuit for electroless hand-pull starting of direct-current generator Download PDFInfo
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- CN214380714U CN214380714U CN202120272380.XU CN202120272380U CN214380714U CN 214380714 U CN214380714 U CN 214380714U CN 202120272380 U CN202120272380 U CN 202120272380U CN 214380714 U CN214380714 U CN 214380714U
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Abstract
The utility model discloses a control circuit that electroless hand power of DC generator started belongs to DC generator start control field, has solved DC generator's electroless start-up problem, and its technical scheme main points must connect the storage battery when ordinary DC generator starts, give the controller power supply after, just can start the generator with the mode of hand power or electricity start-up, the utility model discloses a need not connect under the condition of storage battery, usable hand power generator to retrieve the alternating current that the generator sent, through the conversion control of this circuit, let the generator start smoothly, reached the effect that electroless started.
Description
Technical Field
The utility model relates to a direct current generator start control field relates to a direct current generator need not the control circuit of outside power supply hand power start-up very much.
Background
Generally, a common direct current generator needs to be connected with a storage battery when being started, and the generator can be started in a hand-pulling or electric starting mode after power is supplied to a controller. However, if the direct current generator is not provided with a battery or the battery can not supply power, the direct current generator can not be started. This problem needs to be further solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, solve the technical problem in the correlation technique to a certain extent at least, provide a DC generator and need not the control circuit that outside power supply hand power started to reach the purpose that DC generator does not have the electric start-up.
In order to solve the technical problem, the technical scheme of the utility model is that: a control circuit for electroless hand-pull starting of a direct current generator comprises a generator, a switch power supply circuit, a relay switch circuit and an MCU power supply control circuit, wherein a feed output end of the generator is connected with the switch power supply circuit and used for providing an alternating current power supply generated during hand-pull starting;
the switch power supply circuit is connected with the relay switch circuit and used for supplying power to the relay switch circuit when the hand-pulled generator is in a low rotating speed state and converting the power to the relay switch circuit, and stopping supplying power to the relay switch circuit when the generator is in a high rotating speed output state;
the normally closed switch of the relay switch circuit is connected to an ignition circuit loop of the generator;
and the MCU power supply control circuit is connected to the relay switch circuit and is used for controlling the on-off of power supply of the relay switch circuit after the generator is ignited.
As a specific aspect of the present invention, it may be preferable that: the switching power supply circuit comprises a rectifier bridge, a resistor R85, a resistor R94, a triode Q22, a voltage regulator tube D28, a resistor R95, a capacitor C57 and a silicon controlled rectifier Q23;
the input end of the rectifier bridge is connected with the generator, the output end of the rectifier bridge is connected with one end of a resistor R85 and one end of a resistor R94, the other end of a resistor R85 is connected with the base electrode of a triode Q22 and the anode of a controllable silicon Q23, the emitter electrode of the triode Q22 is connected with the cathode of a voltage regulator tube D28 and serves as the output end, the anode of the voltage regulator tube D28 is connected with the control end of the controllable silicon Q23 and one end of a capacitor C57 through the resistor R95, and the other end of the capacitor C57 and the cathode of the controllable silicon Q23 are grounded together.
As a specific aspect of the present invention, it may be preferable that: the output of the rectifier bridge is connected to ground through a capacitor C1.
As a specific aspect of the present invention, it may be preferable that: the MCU power supply control circuit comprises a triode Q20, a triode Q5, a resistor R92, a resistor R22, a resistor R9, a capacitor C6 and an MCU processor; one control pin of the MCU processor is connected with one end of a resistor R9 and one end of a capacitor C6, the other end of a resistor R9 is connected with the base of a triode Q5, the emitter of the triode Q5 and the other end of the capacitor C6 are grounded, the collector of a triode Q5 is connected with one end of a resistor R22, the other end of the resistor R22 is connected with the base of a triode Q20 and one end of a resistor R92, the other end of the resistor R92 and the emitter of the triode Q20 are connected with a 5V voltage end, and the collector of a triode Q20 serves as an output end.
As a specific aspect of the present invention, it may be preferable that: the relay switch circuit is provided with a first input end and a second input end, the first input end is used for being connected with the output end of the MCU power supply control circuit, the second input end is used for being connected with the output end of the switch power supply circuit, a forward diode D29 is connected on the first input end in series, and the second input end is grounded through a capacitor C14.
The utility model discloses technical effect mainly embodies in following aspect: the common direct current generator is started by connecting the storage battery, and the generator can be started by a hand-pull or electric starting mode after the controller is powered.
Drawings
FIG. 1 is a first part of a schematic diagram of an embodiment of the circuit;
fig. 2 is a circuit schematic diagram of the MCU power supply control circuit in the embodiment.
Reference numerals: 100. a generator; 200. a switching power supply circuit; 201. a rectifier bridge; 300. a relay switch circuit; 400. and the MCU power supply control circuit.
Detailed Description
The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical solutions of the present invention can be more easily understood and grasped, and cannot be construed as limiting the present invention.
Based on the circuit, the drawings and the names of the components in the scheme, the meanings of the components and the components can be understood by those skilled in the art and the components corresponding to the components can be named in a way commonly used by engineers in the field.
Example (b):
a control circuit for manually starting a direct current generator 100 without external power supply is disclosed, and shown in fig. 1, the control circuit comprises a generator 100, a switching power supply circuit 200, a relay switching circuit 300 and an MCU power supply control circuit 400. The generator 100 has a fed output, i.e. an alternating current output. The generator 100 also has an ignition circuit, which is switched on, and the generator 100 starts to operate normally.
The power feeding output terminal of the generator 100 is connected to the switching power supply circuit 200 for providing an ac power supply at the time of pull-in start.
The switching power supply circuit 200 is connected to the relay switch circuit 300, and is configured to supply power to the relay switch circuit 300 when the retractor generator 100 is in a low rotation speed, and to stop supplying power to the relay switch circuit 300 when the generator 100 is in a high rotation speed output.
The switching power supply circuit 200 comprises a rectifier bridge 201, a resistor R85, a resistor R94, a triode Q22, a voltage regulator tube D28, a resistor R95, a capacitor C57 and a silicon controlled rectifier Q23. The input end of the rectifier bridge 201 is connected with the three-phase output end of the generator 100, the output end of the rectifier bridge 201 is connected with one end of a resistor R85 and one end of a resistor R94, the other end of a resistor R85 is connected with the base of a triode Q22 and the anode of a thyristor Q23, the emitter of the triode Q22 is connected with the cathode of a voltage regulator tube D28 and serves as the output end, the anode of the voltage regulator tube D28 is connected with the control end of the thyristor Q23 and one end of a capacitor C57 through the resistor R95, and the other end of the capacitor C57 and the cathode of the thyristor Q23 are grounded together. The rectifier bridge 201 is used for converting alternating current into direct current, the output end of the rectifier bridge 201 is also grounded through a capacitor C1, and the capacitor C1 is used for filtering and rectifying. The output of power is controlled by the operating state of transistor Q22, and the operating state of transistor Q22 is controlled by the base voltage. When the voltage supplied from the rectifier bridge 201 is 5V, the switching power supply circuit 200 outputs 5V, and when it reaches 12V, the thyristor is controlled to be turned on, and the transistor Q22 is turned off, thereby cutting off the power output.
The relay switch circuit 300 has a first input terminal S for connecting to the output terminal of the MCU power supply control circuit 400, and a second input terminal for connecting to the output terminal of the switching power supply circuit 200, the first input terminal S being connected in series to a forward diode D29, and the second input terminal being connected to ground via a capacitor C14. Also on the relay switch circuit 300 is a relay K1 and a diode D5. The diode D5 is connected in reverse parallel with the coil of the relay K1 and is used for protecting the coil of the relay K1. The normally closed switch of the relay switch circuit 300 is connected to the ignition line circuit of the generator 100.
The MCU power supply control circuit 400 is connected to the relay switch circuit 300, and is used to control the on/off of the power supply to the relay switch circuit 300 after the generator 100 is ignited. The MCU power supply control circuit 400 includes a transistor Q20, a transistor Q5, a resistor R92, a resistor R22, a resistor R9, a capacitor C6, and an MCU processor. One control pin of the MCU processor is connected with one end of a resistor R9 and one end of a capacitor C6, the other end of a resistor R9 is connected with the base of a triode Q5, the emitter of the triode Q5 and the other end of the capacitor C6 are grounded, the collector of a triode Q5 is connected with one end of a resistor R22, the other end of the resistor R22 is connected with the base of a triode Q20 and one end of a resistor R92, the other end of the resistor R92 and the emitter of the triode Q20 are connected with a 5V voltage end, and the collector of a triode Q20 serves as an output end.
When the generator 100 is not started, the relay K1 in the circuit is normally closed, the ignition signal wire inside the generator 100 is grounded, and the whole generator is in a flameout state. When the generator 100 is started by hand pulling, the hand pulling starting disc has a certain rotating speed of the rotor, but the generator 100 is not started by normal ignition, the rotating speed of the generator 100 is low, three-phase power output by the generator 100 is rectified by the rectifier bridge 201 circuit to generate 5V direct current, the pull-up potential of the resistor R85 in the circuit flows through the direct current, the triode Q22 is conducted in a saturated mode, power is supplied to the coil of the relay K1, the normally closed switch of the relay K1 is attracted, and therefore the function of starting without electricity is achieved.
In the process of manual starting, after the generator 100 is normally ignited, the generator 100 is in a high rotating speed, when the voltage of the output end of the switching power supply circuit 200 in the circuit rises from the original 5V to 12V, the controllable silicon Q23 can be triggered, due to the reverse conducting function of the voltage stabilizing diode D28, the triode Q22 is in an off state, namely, the controllable silicon is locked, and the power supply for the relay K1 is stopped, and after the generator 100 is normally started, the attraction or the disconnection of the relay K1 is controlled by the MCU power supply control circuit 400 at the rear end in the circuit.
The MCU (microprocessor) in the MCU power supply control circuit 400 can output a high level or a low level under the set condition, and output a high level, so that the transistor Q5 can be turned on, and the transistor Q20 is also turned on, so that the 5V voltage can be transmitted to the relay K1, otherwise, the MCU outputs a low level, and the transistor Q5 is cut off, and the transistor Q20 is cut off, so that the relay K1 is not powered.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (5)
1. A control circuit for electroless hand-pull starting of a direct current generator comprises a generator, a switch power supply circuit, a relay switch circuit and an MCU power supply control circuit, and is characterized in that the feed output end of the generator is connected with the switch power supply circuit and used for providing an alternating current power supply during hand-pull starting;
the switch power supply circuit is connected with the relay switch circuit and used for supplying power to the relay switch circuit when the hand-pulled generator is in a low rotating speed state and converting the power to the relay switch circuit, and stopping supplying power to the relay switch circuit when the generator is in a high rotating speed output state;
the normally closed switch of the relay switch circuit is connected to an ignition circuit loop of the generator;
and the MCU power supply control circuit is connected to the relay switch circuit and is used for controlling the on-off of power supply of the relay switch circuit after the generator is ignited.
2. The control circuit for electroless manual start of the direct current generator according to claim 1, wherein: the switching power supply circuit comprises a rectifier bridge, a resistor R85, a resistor R94, a triode Q22, a voltage regulator tube D28, a resistor R95, a capacitor C57 and a silicon controlled rectifier Q23;
the input end of the rectifier bridge is connected with the generator, the output end of the rectifier bridge is connected with one end of a resistor R85 and one end of a resistor R94, the other end of a resistor R85 is connected with the base electrode of a triode Q22 and the anode of a controllable silicon Q23, the emitter electrode of the triode Q22 is connected with the cathode of a voltage regulator tube D28 and serves as the output end, the anode of the voltage regulator tube D28 is connected with the control end of the controllable silicon Q23 and one end of a capacitor C57 through the resistor R95, and the other end of the capacitor C57 and the cathode of the controllable silicon Q23 are grounded together.
3. The control circuit for electroless manual start of the direct current generator according to claim 2, wherein: the output of the rectifier bridge is connected to ground through a capacitor C1.
4. The control circuit for electroless manual start of the direct current generator according to claim 1, wherein: the MCU power supply control circuit comprises a triode Q20, a triode Q5, a resistor R92, a resistor R22, a resistor R9, a capacitor C6 and an MCU processor; one control pin of the MCU processor is connected with one end of a resistor R9 and one end of a capacitor C6, the other end of a resistor R9 is connected with the base of a triode Q5, the emitter of the triode Q5 and the other end of the capacitor C6 are grounded, the collector of a triode Q5 is connected with one end of a resistor R22, the other end of the resistor R22 is connected with the base of a triode Q20 and one end of a resistor R92, the other end of the resistor R92 and the emitter of the triode Q20 are connected with a 5V voltage end, and the collector of a triode Q20 serves as an output end.
5. The control circuit for electroless manual start of the direct current generator according to claim 1, wherein: the relay switch circuit is provided with a first input end and a second input end, the first input end is used for being connected with the output end of the MCU power supply control circuit, the second input end is used for being connected with the output end of the switch power supply circuit, a forward diode D29 is connected on the first input end in series, and the second input end is grounded through a capacitor C14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120272380.XU CN214380714U (en) | 2021-01-30 | 2021-01-30 | Control circuit for electroless hand-pull starting of direct-current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120272380.XU CN214380714U (en) | 2021-01-30 | 2021-01-30 | Control circuit for electroless hand-pull starting of direct-current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214380714U true CN214380714U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120272380.XU Active CN214380714U (en) | 2021-01-30 | 2021-01-30 | Control circuit for electroless hand-pull starting of direct-current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214380714U (en) |
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2021
- 2021-01-30 CN CN202120272380.XU patent/CN214380714U/en active Active
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Address after: 318020 No. 17, Qingfeng Avenue, Beicheng street, Huangyan District, Taizhou City, Zhejiang Province (self declaration) Patentee after: TAIZHOU SEEDER ELECTRONICS Co.,Ltd. Address before: 318020 No.8, Huimin Road, Huangyan Beicheng Development Zone, Huangyan District, Taizhou City, Zhejiang Province Patentee before: TAIZHOU SEEDER ELECTRONICS Co.,Ltd. |
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