CN2909692Y - Soft start circuit of motor - Google Patents
Soft start circuit of motor Download PDFInfo
- Publication number
- CN2909692Y CN2909692Y CN 200620100659 CN200620100659U CN2909692Y CN 2909692 Y CN2909692 Y CN 2909692Y CN 200620100659 CN200620100659 CN 200620100659 CN 200620100659 U CN200620100659 U CN 200620100659U CN 2909692 Y CN2909692 Y CN 2909692Y
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- motor
- diode
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Abstract
The utility model discloses a motor soft start circuit. The ST in the utility model is the signal of motor starting. When the ST signal is in the high level the motor starts; when the ST signal is in the low lever the motor stops. An AMP is the analog voltage output, which controls the rotate speed of the direct current motor with or without brushes, when the AMP electric potential is high the rotate speed of a motor speeds up, whereas, the utility model slows down. An adjusted potentiometer R1 can control the size of the AMP voltage in the output end of the analog voltage to set the motor rotate speed. When the motor starts, the utility model can charge the capacitance C1 through a resistance R2 and a diode D1, to start the motor without using the full-voltage, thereby reducing the impact to the power supply system and devices. When the output voltage of the potentiometer R1 is high, the resistance R2 and the diode D1 charge a capacitance C1, at this time, the rotate speed of the motor increases gradually, thereby acting as a buffer action. When the output voltage of the potentiometer R1 falls, at this time, a resistance R3 and the diode D1 discharge the C1, the rotate speed of motor slows down gradually, thereby also acting as the buffer action.
Description
Technical field
The utility model relates to a kind of soft starter for motor circuit.
Background technology
Generally all do not design soft starting circuit in the motor circuit in the past, motor is during with full voltage starting, and starting current is very big, the 3-5 that can reach rated current doubly, be easy to damage electric power system and equipment like this, serious even cause the accident, bring the loss of lives and properties.In the prior art, after the motor circuit transformation, motor can start when low pressure, starts the back along with voltage is increased to rated voltage, and motor begins support performance, has significantly reduced the impact to electric power system and equipment.But the structure too complex that common soft starting circuit has, the manufacturing cost height is difficult to apply, and the performance that has is very unstable, and useful life is short, causes use cost to increase, and is unfavorable for that also it applies.
Summary of the invention
The utility model mainly is to solve above-mentioned existing in prior technology technical problem, and a kind of soft starter for motor circuit is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of soft starter for motor circuit, one of adjustable potentiometer R1 output is connected to aanalogvoltage output terminals A MP behind series resistor R2, the forward serial connection diode D1 successively, adjustable potentiometer R1 output another successively series resistor R3, oppositely be connected to aanalogvoltage output terminals A MP after being connected in series diode D2; Ground connection behind the serial connection charging capacitor C1 of diode D1, diode D2 and voltage output end AMP common port is connected to electric motor starting signal ST end behind another forward serial connection diode D3 of diode D1, diode D2 and voltage output end AMP common port.
The utility model is to utilize resistance R 2 and diode D1 to capacitor C 1 charging when electric motor starting, makes that motor can full voltage starting, reduces the impact to electric power system and equipment; When potentiometer R1 output voltage raise, resistance R 2 and diode D1 were to capacitor C 1 charging, and motor speed increases gradually, plays cushioning effect; When potentiometer R1 output voltage reduced, resistance R 3 and diode D2 were to capacitor C 1 discharge, and motor speed reduces gradually, plays cushioning effect equally.Therefore, the utlity model has simple and reasonablely, action of giving is reliable and stable, characteristics such as long service life.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: referring to Fig. 1, ST is the electric motor starting signal in the utility model, electric motor starting when the ST signal is high level, and motor stops when the ST signal is low level; AMP is aanalogvoltage output, the rotating speed of control DC brush or brushless electric machine, and motor speed is accelerated when the AMP current potential raises, otherwise slows down; Adjustable potentiometer R1 can control aanalogvoltage output terminals A MP voltage swing, in order to set the motor speed size.Its circuit structure is such, one of adjustable potentiometer R1 output is connected to aanalogvoltage output terminals A MP behind series resistor R2, the forward serial connection diode D1 successively, adjustable potentiometer R1 output another successively series resistor R3, oppositely be connected to aanalogvoltage output terminals A MP after being connected in series diode D2; Ground connection behind the serial connection charging capacitor C1 of diode D1, diode D2 and voltage output end AMP common port is connected to electric motor starting signal ST end behind another forward serial connection diode D3 of diode D1, diode D2 and voltage output end AMP common port.
Utilize resistance R 2 and diode D1 to capacitor C 1 charging during electric motor starting, make that motor can full voltage starting, reduce impact electric power system and equipment; When potentiometer R1 output voltage raise, resistance R 2 and diode D1 were to capacitor C 1 charging, and motor speed increases gradually, plays cushioning effect; When potentiometer R1 output voltage reduced, resistance R 3 and diode D2 were to capacitor C 1 discharge, and motor speed reduces gradually, plays cushioning effect equally.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection range of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. soft starter for motor circuit, it is characterized in that behind one of adjustable potentiometer R1 output series resistor R2 successively, forward serial connection diode D1, being connected to aanalogvoltage output terminals A MP, adjustable potentiometer R1 output another successively series resistor R3, oppositely be connected to aanalogvoltage output terminals A MP after being connected in series diode D2; Ground connection behind the serial connection charging capacitor C1 of diode D1, diode D2 and voltage output end AMP common port is connected to electric motor starting signal ST end behind another forward serial connection diode D3 of diode D1, diode D2 and voltage output end AMP common port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620100659 CN2909692Y (en) | 2006-01-24 | 2006-01-24 | Soft start circuit of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620100659 CN2909692Y (en) | 2006-01-24 | 2006-01-24 | Soft start circuit of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909692Y true CN2909692Y (en) | 2007-06-06 |
Family
ID=38128902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620100659 Expired - Fee Related CN2909692Y (en) | 2006-01-24 | 2006-01-24 | Soft start circuit of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909692Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378721A (en) * | 2012-04-16 | 2013-10-30 | 西门子公司 | Voltage stabilization device in electronic device, voltage stabilization method of voltage stabilization device, and electronic device |
| CN106160597A (en) * | 2016-08-22 | 2016-11-23 | 深圳市永亿豪电子有限公司 | A kind of single-phase DC brushless motor drive circuit |
-
2006
- 2006-01-24 CN CN 200620100659 patent/CN2909692Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378721A (en) * | 2012-04-16 | 2013-10-30 | 西门子公司 | Voltage stabilization device in electronic device, voltage stabilization method of voltage stabilization device, and electronic device |
| CN103378721B (en) * | 2012-04-16 | 2016-06-15 | 西门子公司 | Stable-pressure device in electronic equipment and realize method and the electronic equipment of voltage stabilizing |
| CN106160597A (en) * | 2016-08-22 | 2016-11-23 | 深圳市永亿豪电子有限公司 | A kind of single-phase DC brushless motor drive circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20100224 |