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公开(公告)号：US08184670B2
公开(公告)日：2012-05-22
申请号：US12900453
申请日：2010-10-07
CPC分类号： H05B33/0824 , H01S5/0428 , H05B33/0818 , H05B33/0851 , H05B33/0854 , Y02B20/347
摘要： In a pulsed laser diode driver an energy storage capacitor is continuously being charged to a supply voltage Vr. When a pulse is initiated, energy stored in the capacitor is delivered to the laser diode load. The capacitor voltage Vd at the end of a pulse is used to control Vr to ensure that Vd is maintained above a minimum voltage Vm required to ensure operation of a current control device (such as FET) just above saturation. Test pulses (such as with attenuated currents or reduced pulsewidth) may be fired to determine an initial optimum value for Vr. After a test pulse, a slightly high estimate for Vr may be used and may be iterated (incremented) down to an optimum value Vm during a firing burst. A digital processor may be used to calculate and store data to optimize the performance. Various embodiments are disclosed.
摘要翻译： 在脉冲激光二极管驱动器中，储能电容器被连续地充电到电源电压Vr。 当启动脉冲时，存储在电容器中的能量被传送到激光二极管负载。 脉冲结束时的电容器电压Vd用于控制Vr，以确保Vd保持在高于饱和度的电流控制装置（例如FET）的操作所需的最小电压Vm以上。 可以激发测试脉冲（例如具有衰减电流或减小的脉冲宽度）以确定Vr的初始最佳值。 在测试脉冲之后，可以使用略微高的Vr估计，并且可以在发射突发期间迭代（递增）到最佳值Vm。 数字处理器可用于计算和存储数据以优化性能。 公开了各种实施例。
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公开(公告)号：US20110085576A1
公开(公告)日：2011-04-14
申请号：US12900453
申请日：2010-10-07
CPC分类号： H05B33/0824 , H01S5/0428 , H05B33/0818 , H05B33/0851 , H05B33/0854 , Y02B20/347
摘要： In a pulsed laser diode driver an energy storage capacitor is continuously being charged to a supply voltage Vr. When a pulse is initiated, energy stored in the capacitor is delivered to the laser diode load. The capacitor voltage Vd at the end of a pulse is used to control Vr to ensure that Vd is maintained above a minimum voltage Vm required to ensure operation of a current control device (such as FET) just above saturation. Test pulses (such as with attenuated currents or reduced pulsewidth) may be fired to determine an initial optimum value for Vr. After a test pulse, a slightly high estimate for Vr may be used and may be iterated (incremented) down to an optimum value Vm during a firing burst. A digital processor may be used to calculate and store data to optimize the performance. Various embodiments are disclosed.
摘要翻译： 在脉冲激光二极管驱动器中，储能电容器被连续地充电到电源电压Vr。 当启动脉冲时，存储在电容器中的能量被传送到激光二极管负载。 脉冲结束时的电容器电压Vd用于控制Vr，以确保Vd保持在高于饱和度的电流控制装置（例如FET）的操作所需的最小电压Vm以上。 可以激发测试脉冲（例如具有衰减电流或减小的脉冲宽度）以确定Vr的初始最佳值。 在测试脉冲之后，可以使用略微高的Vr估计，并且可以在发射突发期间迭代（递增）到最佳值Vm。 数字处理器可用于计算和存储数据以优化性能。 公开了各种实施例。
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