Quick Start Procedure - Linear Technology LT3091EDE Demo Manual

Quick start proceDure

DC2276A is easy to set up to evaluate the performance
of the LT3091. Refer to Figure 1 for proper measurement
equipment setup and follow the procedure below:
NOTE: When measuring the input or output voltage ripple,
care must be taken to avoid a long ground lead on the
oscilloscope probe. Measure the input or output voltage
ripple by touching the probe tip directly across the terminals
of the input or output capacitors. See Figure 2 for proper
scope probe technique.
1. Use JP2 to set the desired output voltage.
2. Put JP4 on ON position.
3. With power off, connect the input power supply to V
and GND.
+
–
+
–
POWER SUPPLY
DEMO MANUAL DC2276A
4. Turn on the power at the V
NOTE: Make sure that the V
–36V.
5. Check for the proper output voltages:
NOTE: If there is no output, temporarily dis-connect
the load to make sure that the load is not set too high
or is shorted.
6. Once the proper output voltages are established, adjust
the loads within the operating range and observe the out-
put voltage regulation, efficiency and other parameters.
NOTE: Make sure that the power dissipation is limited
IN
below the thermal limit.
Figure 1. Test Procedure Setup for DC2276A
V OR V GND
IN OUT
Figure 2. Measuring Input or Output Ripple
.
IN
voltage does not exceed
IN
+
LOAD
–
+
–
dc2276af
3