Economical Module Output Maximum Output Voltage 1.2kW Maximum Average

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Economical Module Output Maximum Output Voltage 1.2kW Maximum Average

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PCO-6140 PULSED/CW LASER DIODE DRIVER MODULE
Economical Module Output Maximum Output Voltage 1.2kW Maximum Average Output Power User-Adjustable Variable Rise Time <250ns Pulse Width Repetition Frequency Single-Shot 250KHz Current Monitor Output
PCO-6140 compact, OEM-style high power pulsed current source designed drive diode lasers, bars arrays pulsed, modes. delivers current variable 60A, pulse widths variable from <250ns pulse repetition frequencies variable from single-shot 250KHz duty cycles 100%. PCO-6140 features user-adjustable variable rise time control. This innovative feature allows user adjust rise time within range <50ns >4µs means -mounted potentiometer, optimize driver's rise time user's application. PCO-6140 based hysteretic, average current, switch-mode regulator. This type regulator variable frequency, variable pulse width design which maintains current energy storage inductor between minimum maximum level. ripple limited minimum maximum current determined hysteretic controller. regulator started when "enable" line taken high runs long enable high. hysteretic regulator provides large input range high efficiency. shunting switch shorts output regulator until output current needed. pulse generated opening shunt switch length input pulse. pulse rise fall times then limited only stray/parasitic capacitance inductance shunting switch output leads. power dissipated driver until enabled. When enabled, maximum output approximately continuously dissipated driver maintain current energy storage inductor (see note next page more information).
This architecture provides high performance driver small form factor, with high operating efficiency stored energy. output current, stored energy driver approximately Joules, dramatically lower than stored energy comparable linear current sources. PCO-6140 requires user-supplied +24VDC support power, CMOS (+5V) gate signal, TTL-level enable/disable signal. high current output derived from +24VDC input. output pulse width frequency controlled gate signal. output current amplitude controlled PCB-mount potentiometer. current monitor output viewed with oscilloscope, providing straight-forward means observe diode current waveform real-time. protect laser diode driver, circuitry incorporated into driver that disables output +24VDC support power drops below 18V. Clamp diodes incorporated into output network protect laser diode against reverse voltage conditions. PCO-6140 mounted air-cooled heatspreader, appropriate mounting system bulkhead mounting plate. (See note next page additional cooling information. rugged, compact design high power capability PCO-6140 make excellent choice driving high power laser diodes.
DIRECTED ENERGY INCORPORATED
PULSE FUTURE Specifications
PARAMETER PULSE OUTPUT CURRENT Amplitude Range Means Adjustment Output Polarity Pulse Rise Time Pulse Width Pulse Recurrence Frequency Range Maximum Duty Cycle Output Pulse Ripple Jitter Efficiency Output Connector DIODE FORWARD VOLTAGE Amplitude GATE INPUT Type Gate Input CURRENT MONITOR OUTPUT Current Monitor Current Monitor Connector CONTROL FUNCTIONS Output Enable/Disable GENERAL Input Power Operating Temperature Cooling Dimensions
VALUE Trimpot mounted PCB, external 0-5V 0-10V Analog Voltage Program, jumper-selectable Positive Variable from <50ns >4µs (10%-90%) useradjustable through trimpot mounted <250ns Single Shot 250KHz 100% ~600mA (<1% output) <3ns First Sigma >65% duty cycle, output High Current DSUB, PCB-Mounted maximum Positive Edge Trigger CMOS 200A/1V terminated into actual current SMB, PCB-Mounted Input, High Enabled +24VDC unregulated cooled 6.25" 8.9" 1.75" (15.88cm 22.6cm 4.45cm)
Duty Cycle, Pulse Width, Output
(2.5ms/Div horizontal scale, 10A/Div vertical scale)
<50ns Rise Time, <400ns Fall Time, <250ns Pulse Width, Output
(250ns/Div horizontal scale, 10A/Div vertical scale)
SPECIFICATIONS SUBJECT CHANGE WITHOUT NOTICE idle power consumption (power consumed when driver enabled pulsing) varies non-linearly with output current, approximated formula PIDLE=I 0.023 where output current setpoint. When pulsing, switching losses (PSW) about 30W. Therefore 24VDC power requirements approximated formula VOUT 2(0.030)]DC PIDLE (1-DC) where VOUT diode forward voltage duty cycle. example, output current, diode voltage duty cycle, power consumption [40A 40A2 0.03].3 [40A2 0.023](1-.3) 190W. +24VDC support power should sized provide this average power. driver mounted air-cooled alum inum heat spreader 1/4" (0.635cm) thick. heat spreader temperature should exceed 45°C. Forced-air and/or mounting heat spreader larger heat sink cold plate required applications which heat spreader temperature exceeds 45°C.
Ordering Information
Model number PCO-6140 mounted 1/4" (0.635cm) aluminum heat spreader, includes mating connector sockets, 1-meter output stripline cable assembly.
#9200-0259 2002 Directed Energy, Inc.
Typical Output Waveform 25us Pulse Width, Output
s/Div horizontal scale, 10A/Div vertical scale)
250KHz Frequency, Output
(2.5µ s/Div horizontal scale, 10A/Div vertical scale)
Directed Energy, Inc. IXYS Company 2401 Research Blvd., Suite Fort Collins, 80526 970-493- 1901 Fax: 970-493-190 Email: deiinfo@directedenergy.com Web: http://www.directedenergy.com

Economical Module Output Maximum Output Voltage 1.2kW Maximum Average

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