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{{Infobox drive
 
{{Infobox drive
 
| drivetype          = Laser diode driver
 
| drivetype          = Laser diode driver
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| image        = [[Image:nx50single.JPG|280px]]
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| image        = [[Image:intensifyweb.jpg|280px]]
 
| controlmodes = Current control
 
| controlmodes = Current control
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| production = End of Life
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| production = Prototypes
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| voltage = 12 ± 1 VDC  
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| voltage = 11-13 VDC  
 
| currentrange = 0.1 - 50A × number of stacked boards
 
| currentrange = 0.1 - 50A × number of stacked boards
 +
| feedbacksignals=On-board current & voltage sensing
 
| referencesignals=[[Analog reference]] for current control, Digital signals for enable & pulsing
 
| referencesignals=[[Analog reference]] for current control, Digital signals for enable & pulsing
 
| configtool=No software tools needed
 
| configtool=No software tools needed
 
| url=[http://granitedevices.com/index.php?q=oem-laser-bar-diode-driver Intensify product site]
 
| url=[http://granitedevices.com/index.php?q=oem-laser-bar-diode-driver Intensify product site]
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| protections=Over temperature, under voltage, short circuit, ESD, laser diode protection
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| protections=Over temperature, under voltage, short circuit, laser diode protection
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| dimensions=94×77.5×15 mm (3.7"×3.1")
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| dimensions=94×77.5×17 mm
 
| other_label=LD forward voltage
 
| other_label=LD forward voltage
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| other_data=0.8 .. 5.0 VDC
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| other_data=0.8 .. 5.5 VDC
 
| other_label2=Ripple current (typ @ 50A)
 
| other_label2=Ripple current (typ @ 50A)
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| 3dmodel=[[Media:Nx50 2d 3d.zip|IGES, STEP & 2D PDF]]
 
 
| other_data2=0.2A RMS, 1.25A pk-pk
 
| other_data2=0.2A RMS, 1.25A pk-pk
 
}}
 
}}
−
'''Intensify Nx 50''' is a compact stackable constant current laser diode bar driver featuring the latest multiphase switched-mode topology delivering up to 50A continuous current at unforeseen efficiency. Parallel capability allows stacking multiple Intensify boards to scale up the current to 150A and beyond. Intensify is intended for OEM applications such as fiber laser pumping, laser tooling and laser diode burn-in.
 
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==Overview==
 
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Nx50 is one of the first laser diode drives deploying an state of the art high frequency three-phase switching converter. Each driver has three switching regulator running in separate time phases to minimize output ripple and passive component sizes.
 
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*Designed for CW/QCW laser bar driving
 
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*50 A, 250 W constant output per board
 
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*Small form factor of 94×77.5 mm / 3.7"×3.1"
 
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*Parallel by stacking, scale to 150 A and beyond
 
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*Laser diode current & voltage spike protection
 
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*Overtemperature, undervoltage, ESD and short circuit proof
 
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*Fully differential analog 0-10 V [[setpoint]] input
 
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*Current and voltage monitor 0-10 V outputs
 
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*Pulsing via digital pulse input or analog modulation
 
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*OEM friendly pricing
 
  
 
==Technical specifications==
 
==Technical specifications==
 
===Power===
 
===Power===
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[[File:Nx50stack with text.jpg|thumb|right|Three Nx50 boards connected parallel by stacking|290px]]
 
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[[File:IntensifyEfficiency.png|thumb|right|Nx50 (single board) efficiency vs load current at various laser diode forward voltages|290px]]
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
! Property !! Value !! Units || Remarks
 
! Property !! Value !! Units || Remarks
 
|-
 
|-
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| Supply voltage || 12 ± 1 || V ||
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| Supply voltage || 12 +/- 1 || V ||
 
|-
 
|-
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| Supply current || 0.1 - 23 <sup>(1)</sup>|| A || Depends on output power
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| Supply current || 0.1 - 24 || A || Depends on output power
 
|-  
 
|-  
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| Max output power || 250 <sup>(1)</sup>|| W || 50A @ 5.0V
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| Max output power || 275 || W || 50A @ 5.5V
 
|-  
 
|-  
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| Output voltage || 0.8 - 5.0 || V || Determined by laser diode voltage drop
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| Output voltage || 0.5 - 5.5 || V || Determined by laser diode voltage drop
 
|-  
 
|-  
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| Output current || 0 - 50 <sup>(1)</sup>|| A || Continuous rating
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| Output current || 0 - 50|| A || Continuous rating
 
|-  
 
|-  
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| Efficiency || 96 ||% || Efficiency when I<sub>O</sub> > 20A and V<sub>O</sub> = 5V
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| Efficiency || 95 ||% || Efficiency when I<sub>o</sub> > 20A and V<sub>o</sub> > 5V
−
|}
+
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(1) For single Nx50 board. Multiply this by the number of stacked Nx50 boards.
+
−
 
+
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===Timing properties===
+
−
{| class="wikitable"
+
−
|-
+
−
! Property !! Value !! Units || Remarks
+
−
|-
+
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| Pulsed LD current rise time || 0.5 typ || ms || Current rise from 10% to 90% of setpoint
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−
|-
+
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| Pulsed LD current rise time || 0.6 typ || ms || Current fall from 10% to 90% of setpoint
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−
|-
+
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| Enable delay || < 60 || ms || From disabled to enabled state
+
−
|-
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| Disable delay || < 2 || ms || From enabled to disabled state
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−
|-
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| Power-up/down sequence || Any order. Any I/O line states not causing spiking above setpoint || ||
+
−
|-
+
 
|}
 
|}
 +
'''Intensify Nx 50''' is a stackable constant current laser diode bar driver delivering up to 150A CW current. Parallel capability allows stacking multiple Intensify boards to scale up the power. Intensify is intended for OEM applications such as fiber laser pumping, laser tooling and laser diode burn-in.
  
 
===Inputs/outputs===
 
===Inputs/outputs===
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====List of I/O====
 
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*Enable, digital 5-24V logic
 
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*Pulse, digital 5-24V logic
 
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*Current [[setpoint]] input, analog 0-10 V
 
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*Current monitor output, analog 0-10 V
 
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*Voltage monitor output, analog 0-5 V
 
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====Characteristics====
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
! Property !! Value !! Units || Remarks
 
! Property !! Value !! Units || Remarks
 
|-
 
|-
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| Current [[setpoint]] voltage || 0..10|| V || 0..10 V sets LD current between 0..50 A <sup>(1)</sup>
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| Current [[setpoint]] voltage || 0..10|| V || 0..10 V sets LD current between 0..50 A
 
|-
 
|-
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| Current setpoint input impedance ||51k <sup>(2)</sup> || Ω|| Differential input
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| Current setpoint input impedance ||50k || Ω|| Differential input
 
|-
 
|-
 
| Current monitor output voltage || 0..10|| V || 0..10 V represents LD current between 0..50 A
 
| Current monitor output voltage || 0..10|| V || 0..10 V represents LD current between 0..50 A
 
|-
 
|-
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| Current monitor output impedance  || ≤ 1k <sup>(2)</sup>||Ω||
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| Current monitor output impedance  || 200 ||Ω||
 
|-
 
|-
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| Voltage monitor output voltage || 0..5.0 || V || Represents LD voltage drop 1:1
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| Voltage monitor output voltage || 0..5.5 || V || Represents LD voltage drop 1:1
 
|-
 
|-
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| Voltage  monitor output impedance  || ≤ 1k <sup>(2)</sup> || Ω||
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| Voltage  monitor output impedance  || 200 || Ω||
 
|-
 
|-
 
| Enable input voltage ||
 
| Enable input voltage ||
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*Logic LOW: -0.3..0.6 V or open circuit = disabled
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*-0.3..1 V or open circuit = disabled
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*Logic HIGH: 4.5..26 V = enabled  
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*2.5..13 V = enabled  
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|| V || Enable is 5V, 12V and 24V logic compatible
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|| V || Enable is 3.3V, 5V and 12V logic compatible
 
|-
 
|-
 
| Pulse input voltage ||
 
| Pulse input voltage ||
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*Logic LOW: -0.3..0.6 V or open circuit (I<sub>O</sub>=100% of setpoint)
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*-0.3..1 V or open circuit = pulse high
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*Logic HIGH: 4.5..26 V (I<sub>O</sub>=3.5% of setpoint)
+
*2.5..13 V = pulse low
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|| V || Pulse is 5V, 12V and 24V logic compatible. When Pulse input is logic HIGH, outputs current is directly defined by [[setpoint]], logic LOW reduces output current to 0.0035*setpoint.
+
|| V || Pulse is 3.3V, 5V and 12V logic compatible. Pulse high outputs current defined by setpoint, pulse low outputs current 0.035*setpoint.
 
|}
 
|}
−
(1) For single Nx50 board. Multiply this by the number of stacked Nx50 boards.<br />
 
−
 
−
(2) For single Nx50 board. Divide this value by the number of stacked Nx50 boards.
 
  
 
===Mechanical & environmental===
 
===Mechanical & environmental===
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! Property !! Value !! Units || Remarks
 
! Property !! Value !! Units || Remarks
 
|-
 
|-
−
| Dimensions ||  
+
| Dimensions || 94×77.5×17 || mm || W×H×D
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*94×77.5×15 (PCB)
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*107×77.5×15 (with J1 hooks)
+
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|| mm || W×H×D
+
 
|-
 
|-
 
| Operating temperature range || -40..85  || °C || Non condensing. Output rating may derate at high temperature without forced convection
 
| Operating temperature range || -40..85  || °C || Non condensing. Output rating may derate at high temperature without forced convection
 
|-
 
|-
−
| Reliability MTBF || 1.2 || 10<sup>6</sup> Hrs || Per Bellcore TR-332 50% stress, T<sub>amb</sub> = 40 °C  
+
| Reliability MTBF || 1.5 || 10<sup>6</sup> Hrs || Per Bellcore TR-332 50% stress, T<sub>amb</sub> = 40 °C  
 
|-
 
|-
 
|ESD protection|| Exceeds ESD Protection to IEC61000-4-2 Level 4, ±12 kV discharge||||All I/O lines
 
|ESD protection|| Exceeds ESD Protection to IEC61000-4-2 Level 4, ±12 kV discharge||||All I/O lines
 
|}
 
|}
  
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==Purchasing==
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==Literature==
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This product is at its End of Life. For final order and support plan, see [https://granitedevices.com/argon-and-intensify-nx50-product-end-of-life-notice/?preview=true EOL notification].
+
−
 
+
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==Setup guide==
+
 
* [[Intensify Nx50 setup guide|Intensify Nx50 setup & user guide]]
 
* [[Intensify Nx50 setup guide|Intensify Nx50 setup & user guide]]
−
 
+
* [http://granitedevices.com/assets/files/flyer/intensify_nx50_flyer.pdf|Nx50 PDF flyer]
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[[Category:Laser_diode_drivers]]
+

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