Accueil > lasers à semiconducteurs > Pulseur 125A pour diode laser

Pulseur 125A pour diode laser


250kHz to DC     600ns to DC

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 output 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 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 controller.

The controller turns on to charge the energy storage inductor when the current drops to the lower limit and turns off when the current reaches the upperlimit
and repeats this operation as necessary to maintain the proper current.

The time for these operations will vary dependent on the load voltage and the input voltage, therefore the pulse width of the controller will change
as necessary to charge the inductor and the period will change dependent on the rate at which the inductor discharges.

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.

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