Economical Module 125A Output Maximum Output Voltage 2.5kW Maximum Ave
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PCO-6130 PULSED/CW LASER DIODE DRIVER MODULE
Economical Module 125A Output Maximum Output Voltage 2.5kW Maximum Average Output Power User-Adjustable Variable Rise Time <600ns Pulse Width Repetition Frequency Single-Shot 250KHz Current Monitor Output
PCO-6130 compact, OEM-style high power pulsed current source designed drive diode lasers, bars arrays pulsed, modes. delivers output current variable from 125A, pulse widths variable from <600ns pulse repetition frequencies variable from single-shot 250KHz duty cycles 100%. PCO-6130 features user-adjustable variable rise time control. This innovative feature allows user adjust rise time within range <200ns >5µs means PCB-mounted potentiometer, optimize driver's rise time user's application. PCO-6130 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, 125A 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. 125A output current, stored energy driver approximately Joules, dramatically lower than stored energy comparable linear current sources. PCO-6130 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-6130 available options. Option mounted air-cooled heatsink. Option (pictured above) provided without heatsink, must mounted user-supplied heatsink cold plate capable dissipating approximately 100W. rugged, compact design high power capability PCO-6130 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/Droop Over/undershoot 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 125A Trimpot mounted PCB, external 0-5V 0-10V Analog Voltage Program, jumper-selectable Positive Variable from <200ns >5µs (10%-90%) useradjustable through trimpot mounted <600ns Single Shot 250KHz 100% 125A output, 10µs pulse width <3ns First Sigma >75% duty cycle, 125A output High Current DSUB, PCB-Mounted maximum Positive Edge Trigger CMOS 1000A/1V terminated into actual current SMB, PCB-Mounted Input, High Enabled +24VDC unregulated Option (with heatsink): cooled Option (without heatsink): Cold plate capable dissipating ~75W 125A output current Option 2.7" (15.2cm 20.3cm 6.9cm) Option 6.25" 1.5" (15.9cm 20.3cm 3.8cm)
<200ns Rise Time, <600ns Fall Time, 120A Output
(500ns/Div horizontal scale, 20A/Div vertical scale)
<600ns Minimum Pulse Width, 120A Output
(500ns/Div horizontal scale, 20A/Div vertical scale, measured load)
SPECIFICATIONS SUBJECT CHANGE WITHOUT NOTICE 125A output, driver dissipates ~75W when enabled pulsing. Efficiency therefore ratio output power idle power consumption. idle power consumption varies non-linearly with output current, approximated formula P=I2 0.005 where output current. example, output current, idle power consumption 0.005 28W. +24VDC support power should sized average output power (Power Duty Cycle) plus idle power consumption, defined above. Model number PCO-6130 Option mounted air-cooled heatsink. Option requires customer-supplied heatsink cold plate capable dissipating ~75W (when driver operated 125A output, above).
#9200-0225 2001 Directed Energy, Inc.
Typical Output Waveform 25us Pulse Width, 120A Output
(5µs/Div horizontal scale, 20A/Div vertical scale)
250KHz Frequency, 120A Output
(2.5µs/Div horizontal scale, 20A/Div vertical scale)
Directed Energy, Inc. IXYS Company 2401 Research Blvd., Suite Fort Collins, 80526 970-493-1901 Fax: 970-493-1903 Email: deiinfo@directedenergy.com Web: http://www.directedenergy.com
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