KR0110496Y1 - Motor power protection circuit during no power - Google Patents
Motor power protection circuit during no power Download PDFInfo
- Publication number
- KR0110496Y1 KR0110496Y1 KR2019910013525U KR910013525U KR0110496Y1 KR 0110496 Y1 KR0110496 Y1 KR 0110496Y1 KR 2019910013525 U KR2019910013525 U KR 2019910013525U KR 910013525 U KR910013525 U KR 910013525U KR 0110496 Y1 KR0110496 Y1 KR 0110496Y1
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- KR
- South Korea
- Prior art keywords
- motor
- power
- power supply
- protection circuit
- generated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002411 adverse Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
Landscapes
- Control Of Stepping Motors (AREA)
Abstract
본 고안은 무전력시 인위적인 모터 회원으로 모터 전원부가 손상을 입는 등의 현상을 제거하기 위한 수단과 관련된 것으로서, 종래에는 스텝핑 모터의 상전류 증폭부와 스텝모터 접속단사이에 구비된 다이오드 회로에 무전력시 인위적 모터 회전으로 발전이 되었을 때 이러한 발전전력이 구동 전원단으로 영향을 미쳐 모터 전원부에 손상을 입히는 등의 불리한 현상을 야기할 수 있었으나, 본 고안은 이러한 문제점을 개선할 수 있도록 상기 다이오드 회로의 구동전원단과 접지사이에 모터 무전력 회전시 발생되는 전압이 구동전원단으로 통과하지 못하도록 한 제너 다이어드(ZD)와 발전전력을 방전시키는 방전 저항(R)에 의한 보호회로(1)를 구비시킨 구성의 무부하시 모터 보호회로를 제공하는데 있다.The present invention relates to a means for eliminating a phenomenon such as damage to the motor power supply by an artificial motor member when no power, and conventionally has a power-free operation in the diode circuit provided between the phase current amplifier of the stepping motor and the step motor connection terminal. When the electric power is generated by artificial motor rotation, the generated power may affect the driving power stage, which may cause adverse effects such as damage to the motor power supply. However, the present invention may solve the problem. Between the driving power supply terminal and the ground, a protection circuit (1) is provided by a zener dial (ZD) which prevents the voltage generated when the motor is rotating without power to the driving power supply terminal and a discharge resistor (R) for discharging the generated electric power. It is to provide a motor protection circuit in a no load configuration.
Description
제1도는 종래의 모터 구동 회로에서 요부를 나타낸 일예도.1 is an exemplary diagram showing main parts of a conventional motor driving circuit.
제2도는 본 고안에 의한 모터전원부 보호회로가 구비된 모터 구동회로의 요부 참고도 .2 is a reference diagram of the main part of the motor drive circuit with a motor power supply protection circuit according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 보호회로 ZD : 제너 다이오드1: Protection circuit ZD: Zener diode
R : 방전저항R: discharge resistance
본 고안은 모터가 무전력 상태에 있을 때 사람의 인위적인 회전으로 모터 전원부가 소손되는 것을 방지하기 위한 수단과 관련된 것으로서, 이는 특히 스텝모터등에서 제너 다이오드 회로에 의한 보호회로를 구동부에 구비시킨 무전력시 모터 전원부 보호회로에 관한 것이다.The present invention relates to a means for preventing the motor power supply from being burned out by human rotation when the motor is in a power-free state. It relates to a motor power supply protection circuit.
종래의 스텝 모터에서 그 구동회로의 접속단에 대한 구성을 제1도와 같이 나타내었다.The configuration of the connection end of the drive circuit in the conventional step motor is shown in FIG.
여기서는 시스템에서 위상 입력이 제공되는상(相) 전류 증폭부(21)와, 스텝핑 모터측으로 연결되는 접속단(22)라인사이에 소정 전압이상(+24V), 이하(0V)의 전압레벨을 모터구동시에 없애주기 위해 상라인에 각기 이어진 다이오드(D14~D20) 회로가 구비되어져 있고, 이 다이오드(D14-D20) 회로는 구동전압단(B+)과 접지로 각기 이어져 있다.In this case, the voltage level above the predetermined voltage (+ 24V) and below (0V) is set between the phase current amplifier 21 where the phase input is provided in the system and the line of the connection terminal 22 connected to the stepping motor side. The diodes D 14 to D 20 are connected to the upper line to eliminate the driving time, and the diodes D 14 to D 20 are connected to the driving voltage terminal B + and the ground, respectively.
그러나, 이러한 회로에서는 모터에 전력공급이 없는 상태에서 사람이 손으로 모터를 회전시켰을 경우 모터에선 발전이 일어나고, 이것은 +24V 의 모터구동 전압라인에 전압이 인가되어 시스템의 오동작을 야기할 수 있으며 또는 구동전원측으로 전류가 역류되어 전원부에 손상이 갈 염려가 많았다.However, in such a circuit, if a human rotates the motor by hand without power supply to the motor, power generation occurs in the motor, which may cause a malfunction of the system by applying a voltage to the + 24V motor driving voltage line. The current flowed back toward the driving power supply, which was likely to damage the power supply.
본 고안의 목적은 상기와 같은 종래기술의 문제점을 개선할 수 있도록 안출되어진 무전력시 모터 전원부 보호회로를 제공코저 한 것이다.It is an object of the present invention to provide a protection circuit for a power-free motor power unit devised to improve the problems of the prior art as described above.
본 고안은 특히 스텝 모터의 상전류증폭부와 접속단(22)사이의 다이오드 회로에는 전압 방전저항과 제너 다이오드에 의한 회로를 구비시킨 구성의 모터 전원부 보호회로를 특징으로 하는 것이다.The present invention is particularly characterized by a motor power supply protection circuit having a structure in which a diode discharge circuit and a circuit by a zener diode are provided in the diode circuit between the phase current amplifier and the connection terminal 22 of the stepper motor.
이하에서 이를 좀더 상세히 설명하면 다음과 같다.This will be described in more detail below.
즉, 제2도는 본 고안에 의한 무전력시 모터 전원부 보호회로를 나타내었다.That is, FIG. 2 shows a protection circuit of the motor power unit during no power according to the present invention.
여기서는 상전류증폭부(21)와 접속단(22)사이에 구비된 다이오드(D14~D20)회로의 구동전원단(B+)과 접지 사이에 제너다이오드(ZD)와 방전 저항(R)에 의한 보호회로(1)를 연결시킨 구성으로 되어 있다.In this case, the zener diode ZD and the discharge resistor R are connected between the driving power terminal B + and the ground of the diodes D 14 to D 20 provided between the phase current amplifier 21 and the connection terminal 22. The protection circuit 1 is connected.
즉, 본 고안의 모터전원부 보호회로는 다이오드(D14~D20)회로에 보호회로(I)가 구비되어져 있으므로 모터가 무전력시 인위적인 회전이 진행되더라도 모터전원부를 보호할 수 있다.That is, the protection circuit of the motor power supply unit of the present invention is provided with a protection circuit (I) in the diode (D 14 ~ D 20 ) circuit can protect the motor power supply unit even if the motor rotates artificially when the power is off.
일예로, 상기 보호회로(1)의 제너다이오드(ZD)로는 제너다이오드(ZD)의 문턱 전압이 +20V이고, 구동전원 B+는 24V라 가정하면 인위적인 회전으로 모터를 회전시킬때는 제너 다이오드(ZD)의 문턱 전압인 +20V를 넘을 수 있는 전류가 발전되기 불가능하기 때문이다.For example, assuming that the threshold voltage of the zener diode ZD is + 20V and the driving power source B + is 24V, the zener diode ZD of the protection circuit 1 is a zener diode (ZD). This is because it is impossible to generate a current that can exceed +20 V, which is a threshold voltage of.
그리고, 이러한 사실을 실험을 통해서도 알 수 있었다.And this can be seen through experiments.
또, 보호회로(1)의 방전 저항(R)은 무전력하에서 모터가 발전되었을때 발전되어진 전류가 방전저항(R)을 통해 방전되어진다.In addition, the discharge resistance R of the protection circuit 1 is discharged through the discharge resistor R, the electric current generated when the motor is generated under no power.
또, 전력이 모터에 공급되었을때는 제너 다이오드(ZD)는 순방향 전압강하가 생기고 모터동작에 이상을 야기하지 않는다.In addition, when electric power is supplied to the motor, the zener diode ZD generates a forward voltage drop and does not cause an abnormality in motor operation.
이러한 본 고안은 스텝 모터에서 무전력시 사람의 인위적인 모터 회전에 의해 발전이 되더라도 모터전원부를 보호할 수 있어 이러한 기기의 사용상의 신뢰성을 양호히 확보할 수 있는 유익한 특징이 있는 것이다.The present invention has an advantageous feature that can protect the motor power supply unit even if power is generated by human motor rotation when no power is generated in the stepper motor, so that the reliability of use of such a device can be secured well.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910013525U KR0110496Y1 (en) | 1991-08-23 | 1991-08-23 | Motor power protection circuit during no power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910013525U KR0110496Y1 (en) | 1991-08-23 | 1991-08-23 | Motor power protection circuit during no power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930005733U KR930005733U (en) | 1993-03-22 |
| KR0110496Y1 true KR0110496Y1 (en) | 1998-04-14 |
Family
ID=19318285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019910013525U Expired - Lifetime KR0110496Y1 (en) | 1991-08-23 | 1991-08-23 | Motor power protection circuit during no power |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0110496Y1 (en) |
-
1991
- 1991-08-23 KR KR2019910013525U patent/KR0110496Y1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR930005733U (en) | 1993-03-22 |
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| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19910823 |
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Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19960910 |
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| UE0601 | Decision on rejection of utility model registration |
Comment text: Decision to Refuse Application Patent event code: UE06011S01D Patent event date: 19961212 |
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| J2X1 | Appeal (before the patent court) |
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Patent event code: UB09011R01I Patent event date: 19970113 Comment text: Request for Trial against Decision on Refusal Patent event code: UB09011R02I Patent event date: 19961111 Comment text: Amendment to Description, etc. Appeal kind category: Appeal against decision to decline refusal Request date: 19970113 Decision date: 19970702 |
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