Quick Start Procedure - Linear Technology DC1816B Demo Manual

DEMO MANUAL DC1816B

Quick start proceDure

IMPORTANT NOTE TO CUSTOMERS
HIGH VOLTAGES ARE PRESENTED ON THE DEMO CIRCUIT,
AND CAN LEAD TO LETHAL INJURIES TO HUMAN BODY.
ONLY QUALIFIED PERSONNEL SHOULD OPERATE IT. IT
IS STRONGLY RECOMMENDED TO USE SAFETY GLASSES
AND AN ISOLATION TRANSFORMER.
NOTE. IMPROPER COMPONENTS REPLACEMENT ON THE
DEMO CIRCUIT CAN CAUSE PERFORMANCE DETERIORA-
TIONS, CIRCUIT MALFUNCTION, PROPERTY DAMAGE,
AND EVEN LIFE-THREATENING INJURIES. CONTACT
LINEAR TECHNOLOGY APPLICATIONS ENGINEERS FOR
PROPER COMPONENT REPLACEMENT.
Demonstration circuit 1816B is easy to set up to evalu-
ate the performance of the LT3799-1. Refer to Figure 1
2
for proper measurement equipment setup and follow the
procedure below:
1. Connect a 3A LED string with forward voltage less
2. With power off, connect the input power supply to line
3. Turn on the power at the input.
NOTE. Make sure that the input voltage does not exceed
the maximum input voltage (305VAC).
4. Check for the proper output current.
Once the proper output currents are established, adjust the
input voltage and/or the load and observe the output current
regulation, efficiency, power factor and other parameters.
Figure 1. Proper Measurement Equipment Setup
than 38V, but greater than 22V, between LED
–
LED terminals.
(L) input and neutral (N) input.
+
and
dc1816bfc