CN207516931U - Electric lockout circuit on servo-driver - Google Patents
Electric lockout circuit on servo-driver Download PDFInfo
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- CN207516931U CN207516931U CN201721735504.3U CN201721735504U CN207516931U CN 207516931 U CN207516931 U CN 207516931U CN 201721735504 U CN201721735504 U CN 201721735504U CN 207516931 U CN207516931 U CN 207516931U
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- capacitance
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- servo
- driver
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Abstract
A kind of electric lockout circuit on servo-driver, NPN transistor base connects zener diode anode, 3rd resistor first end and third capacitance first end, NPN triode collector connects second resistance first end, zener diode cathode connects the anode tap of first resistor first end and double diode, middle termination the second capacitance first end of double diode and the 4th resistance first end, first capacitance first end, 4th resistance second end, double diode negative pole end, first resistor second end and the second termination power of second resistance V+, first capacitance second end, second capacitance second end, third capacitance second end, 3rd resistor second end and NPN triode emitter ground connection.Its advantage is that circuit is simple, reaction is fast, safe and reliable, when during power supply electrifying or when unstable, sending out signal in time, lockout circuit will not be damaged with the component for protecting circuit.
Description
Technical field
The utility model is related to the control device circuits of servo-driver, are related to electric block, espespecially a kind of servo-driver
On electric lockout circuit.
Background technology
Not for the defencive function under indeterminate state during power supply electrifying on traditional servo-driver；The circuit pair
Carry out effective protection in the case that power up and power supply are unstable, the stateful lower stabilization of protection servo-driver institute is transported
Row；Traditional servo-driver powers on lockout circuit there are following shortcomings, such as：Power supply in power up is unstable to be caused
Abnormal pulsers damage, under exterior disturbed condition the unstable pulse that leads to system abnormity of power supply occur leading to module damage.
Invention content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide the electricity block electricity on a kind of servo-driver
Road.Be intended to by circuit in power up block in effective time, only when it is all it is in stable condition under start to lift a blockade
Start normal operation, when during the power supply electrifying or unstable, send out signal, lockout circuit, to protect the member of circuit in time
Device will not damage.
Technical solution is used by the utility model solves its technical problem：A kind of electricity envelope on servo-driver is provided
Lock circuit, it is characterised in that：Including NPN triode, zener diode, double diode, first resistor, second resistance, third electricity
Resistance, the 4th resistance, the first capacitance, the second capacitance and third capacitance, the NPN transistor base connect zener diode anode,
Three resistance first ends and third capacitance first end, NPN triode collector connect second resistance first end, and zener diode cathode connects
The anode tap of first resistor first end and double diode, middle termination the second capacitance first end of double diode and the 4th resistance first
End, the first capacitance first end, the 4th resistance second end, double diode negative pole end, first resistor second end and second resistance second
Termination power V+, the first capacitance second end, the second capacitance second end, third capacitance second end, 3rd resistor second end and NPN
Transistor emitter is grounded.
When level is less than the pressure drop of zener diode and NPN triodes during power initiation, the output of triode
High level locking signal, NPN triode is connected when supply voltage reaches 5V+, and triode output low level enables unlocking signal.
The sum of the pressure drop of zener diode and the saturation voltage drop of NPN triodes determine the operating point for powering on lockout circuit.
Zener diode, third capacitance and 3rd resistor composition filter circuit, the cathode of zener diode connect fault-signal
Input terminal, anode connects the base stage of NPN triode；As the delay filtering of power up；
The failure servo that electric lockout circuit on the utility model failure servo-driver is simple, reaction is fast, safe and reliable
Electric lockout circuit on driver when during the power supply electrifying or unstable, sends out signal, lockout circuit, with protection in time
The component of circuit will not damage.
The beneficial effects of the utility model are：Circuit in servo-driver power up can be carried out sealing in effective time
Lock, simple in structure, reaction is soon, securely and reliably.
Description of the drawings
The utility model will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the embodiment circuit diagram of the utility model.
Specific embodiment
Referring to attached drawing, the electric lockout circuit on a kind of servo-driver of the utility model includes, it is characterised in that：Packet
Include NPN triode Q1, zener diode DZ1, double diode D, first resistor R1, second resistance R2,3rd resistor R3, the 4th electricity
Resistance R4, the first capacitance C1, the second capacitance C2 and third capacitance C3, the NPN triode Q1 base stage are meeting zener diode DZ1 just
Pole, 3rd resistor first end and third capacitance first end, NPN triode Q1 collector connect second resistance R2 first ends, voltage stabilizing two
Pole pipe DZ1 cathode connect first resistor R1 first ends and the anode tap 1 of double diode D, and the middle-end 3 of double diode D connects the second capacitance
C2 first ends and the 4th resistance R4 first ends, the first capacitance C1 first ends, the 4th resistance R4 second ends, double diode D negative pole ends
2nd, first resistor R1 second ends, the second termination powers of second resistance R2 5V+, the first capacitance C1 second ends, the second capacitance C2 second
End, third capacitance C3 second ends, 3rd resistor R3 second ends and NPN triode Q1 emitter ground connection.
When level is less than the pressure drop of zener diode DZ1 and NPN triode Q1 during power initiation, triode
High level locking signal is exported, NPN triode Q1 is connected when supply voltage reaches 5V, and triode output low level enables out
Lock signal.
The sum of the pressure drop of zener diode DZ1 and the saturation voltage drop of NPN triodes Q1 determine the work for powering on lockout circuit
Make a little.
Zener diode DZ1, third capacitance C3 and 3rd resistor R3 composition filter circuits, the cathode of zener diode DZ1
The input terminal of fault-signal is connect, anode connects the base stage of NPN triode Q1；As the delay filtering of power up.
Claims (1)
1. a kind of electric lockout circuit on servo-driver, it is characterised in that：Including NPN triode, zener diode, double two poles
Pipe, first resistor, second resistance, 3rd resistor, the 4th resistance, the first capacitance, the second capacitance and third capacitance, the NPN tri-
Pole pipe base stage connects zener diode anode, 3rd resistor first end and third capacitance first end, NPN triode collector and connects second
Resistance first end, zener diode cathode connect the anode tap of first resistor first end and double diode, the middle termination of double diode
Second capacitance first end and the 4th resistance first end, the first capacitance first end, the 4th resistance second end, double diode negative pole end,
First resistor second end and the second termination power of second resistance V+, the first capacitance second end, the second capacitance second end, third capacitance
Second end, 3rd resistor second end and NPN triode emitter ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735504.3U CN207516931U (en) | 2017-12-13 | 2017-12-13 | Electric lockout circuit on servo-driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721735504.3U CN207516931U (en) | 2017-12-13 | 2017-12-13 | Electric lockout circuit on servo-driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207516931U true CN207516931U (en) | 2018-06-19 |
Family
ID=62544366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721735504.3U Active CN207516931U (en) | 2017-12-13 | 2017-12-13 | Electric lockout circuit on servo-driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207516931U (en) |
-
2017
- 2017-12-13 CN CN201721735504.3U patent/CN207516931U/en active Active
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