Good Will Instrument PSH-10100 User Manual - page 12
PSH SERIES PROGRAMMABLE POWER SUPPLY
USER MANUAL
18
The function of the Remote Error Sensing can only be applied to the
Constant Voltage mode as shown in Figure 5-3. The feedback point
of power supply must start from the load terminal directly. Therefore,
the power supply can display its function on the load terminal
instead of output terminal. To compensate the voltage drop causing
from the test lead, it needs to shift the voltage from the output
terminal of power supply, and the voltage on the load terminal
remains unchanged.
Figure 5-3 The power supply with remote error sensing
Error Sensing Open Protection
The sensing circuit must avoid open circuit without equipping with
Relay, Switch, and Connector. When the open circuit is occurred
abruptly on the sensing circuit, it will cause overshoot on the output
terminal. To prevent this kind of phenomenon, add small resistance
R1 and R2 or replace with diode as shown in the Figure 5-4.
Figure 5-4 The power supply with remote error sensing protection
PSH SERIES PROGRAMMABLE POWER SUPPLY
USER MANUAL
19
5-8. Test Lead Selective Table
When we use PSH -SER models power supply, the test lead must
have an enough current capacity to prevent from damaged. The
following is test lead selective table shows the maximum current
rating, based on 450A/cm
2
. A large test lead is recommended in
order to reduce the voltage drop as less as better on the test lead
(typical 0.5V maximum).
Wire Size
(AWG)
Max. Current
(A)
Wire Size
(AWG)
Max. Current
(A)
20
2.5
6
61
18
4
4
97
16
6
2
155
14
10
1
192
12
16
1/0
247
10
21
2/0
303
8
36