PCO-6130 查看數據表（PDF） - Directed Energy, Inc. An IXYS Company

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PCO-6130

PULSED/CW LASER DIODE DRIVER MODULE

Directed Energy, Inc. An IXYS Company 

THE PULSE OF THE FUTURE

PCO-6130 PULSED/CW LASER

DIODE DRIVER MODULE

• Economical OEM Module

• 0A To 125A Output

• 20V Maximum Output Voltage

• 2.5kW Maximum Average Output

Power

• User-Adjustable Variable Rise Time

• <600ns To DC Pulse Width

• Repetition Frequency Single-Shot

To 250KHz

• Current Monitor Output

The PCO-6130 is a compact, OEM-style high power

pulsed current source designed to drive diode lasers, bars

and arrays in pulsed, QCW or CW modes. It delivers out-

put current variable from 1A to 125A, pulse widths

variable from <600ns to DC, and pulse repetition

frequencies variable from single-shot to 250KHz at duty

cycles up to 100%.

The PCO-6130 features a user-adjustable variable rise

time control. This innovative feature allows the user to ad-

just the rise time within a range of <200ns to >5µs by

means of a PCB-mounted potentiometer, to optimize the

driver’s rise time for the user’s application.

The PCO-6130 is based on a hysteretic, average current,

switch-mode regulator. This type of regulator is a variable

frequency, variable pulse width design which maintains

current in an energy storage inductor between a minimum

and maximum level. The ripple is limited to the minimum

and maximum current determined by the hysteretic con-

troller. The regulator is started when the TTL "enable" line

is taken high and runs as long as the enable is high. The

use of the hysteretic regulator provides a large input range

and high efficiency.

A shunting switch shorts the output of the regulator until

output current is needed. The pulse is generated by

opening the shunt switch for the length of the input pulse.

The pulse rise and fall times are then limited only by the

stray/parasitic capacitance and inductance of the shunting

switch and output leads.

No power is dissipated in the driver until it is enabled.

When enabled, at 125A maximum output approximately

75W is continuously dissipated in the driver to maintain

the current in the energy storage inductor (see note #1 on

next page for more information).

This architecture provides a high performance driver in a

small form factor, with high operating efficiency and low

stored energy. At 125A output current, the stored energy

in the driver is approximately 7 Joules, dramatically lower

than the stored energy in comparable linear current

sources.

The PCO-6130 requires user-supplied +24VDC support

power, a CMOS (+5V) gate signal, and a TTL-level en-

able/disable signal. The high current output is derived

from the +24VDC DC input. The output pulse width and

frequency are controlled by the gate signal. The output

current amplitude is controlled by a PCB-mount potenti-

ometer. A current monitor output may be viewed with an

oscilloscope, providing a straight-forward means to ob-

serve the diode current waveform in real-time.

To protect the laser diode and the driver, circuitry is in-

corporated into the driver that disables the output if the

+24VDC support power drops below 18V. Clamp diodes

are incorporated into the output network to protect the

laser diode against reverse voltage conditions.

The PCO-6130 is available in two options. Option A is

mounted on an air-cooled heatsink. Option B (pictured

above) is provided without the heatsink, and must be

mounted to a user-supplied heatsink or cold plate capa-

ble of dissipating approximately 100W.

The rugged, compact design and high power capability of

the PCO-6130 make it an excellent OEM choice for driv-

ing high power laser diodes.

DIRECTED

ENERGY

INCORPORATED

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