Gw-instek PPH-1503 User Manual download pdf (Page 55)

BASIC OPERATION

Conditions

To protect the high-speed power supply when

operating as a current sink, the following two

conditions must be met:

1. Ensure that the voltage of the external power

supply is greater than the output of the high-

speed power supply voltage by 0.3V~2.5V. The

voltage difference depends on the high-speed

power supply voltage output and the load

conditions.

2. To ensure that the high-speed power supply

output voltage is within the range of 0~5V, the

current draw cannot exceed 2A. For output

voltgages between 5V~15V, the current draw

must be reduced by 0.1A for each 1V increase

over 5V. See the formula in the table below for

the details.

High-speed Power Supply

Output Voltage

Maximum Dissipation

Current

0~5V

5V~15V

2A-((0.1A/V)*(output

voltage - 5V))

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 136 137

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Gw-instek PPH-1503 User Manual Page 55