Use Of 2 Power Supplies In Series With The "Tracking" Function (Symmetrical ± 30 V Sources) At 2.5 A Max. (Ax 502 And Ax 503); Use Of The 2.7 V - 5.5 V (5 A) Power Supply (Ax 503 Only) - Metrix AX 501 Manual De Instrucciones

Chapter II
3.2.4. Use of 2 power supplies in series with the "TRACKING" function (symmetrical ± 30 V
s ources) at 2.5 A max. (AX 502 and AX 503)
• Press in the "TRACKING" button ("ON", LED lit).
The pushbutton is set to "ON" sets up a series connection between the "-" terminal of the
"MASTER" power supply and the "+" terminal of the "SLAVE" power supply.
Procedure:
• In sequence (power supply a and then b), adjust the "current " potentiometers to define
identical limit currents.
• Connect up to the circuit to be powered (external terminals of the "MASTER" and "SLAVE"
power supplies).
• The "MASTER" source is on the left (a); set the required initial voltage.
• The "SLAVE" source is on the right (b).
•
In this function, only the voltage controls of the "MASTER" source (a) will be used from now on.
• The symmetrical "SLAVE" source (b) reacts to the "MASTER" source (a) voltage variations by
proportional "tracking" variations in absolute values ("TRACKING" function).
For the use of symmetrical voltages (e.g. ± 15 V), one of the 2 terminals (MASTER "-"
or SLAVE "+") will be connected to the circuit to be powered ("0" point).
•
V "MASTER" (a)
•
V "SLAVE" (b)
•
Example
If the "SLAVE" source (b) is taken outside its limits (voltage or current) by the "MASTER"
source (a), the corresponding "LIMIT" LED lights up.
3.2.5. U se of the 2.7 V - 5.5 V (5 A) power supply (AX 503 only)
• If necessary, connect the "
• Connect the "+" and "-" terminals to the points of the circuit to be powered using the connection
leads.
• Set the required voltage between 2.7 V and 5.5 V using the adjustment potentiometer.
• For "fine" adjustment, connect these terminals to a multimeter (appropriate calibre).
• If the output current reaches the 5 A limit current value, the "LIMIT 5 A" LED comes on, the
power supply automatically switches to "current" regulation mode and the voltage is not longer
regulated.
Application:
Stabilized power supplies
Action: Δ V "MASTER" (a)
Reaction: Δ V "SLAVE" (b) (absolute value)
V "MASTER"
V "SLAVE"
V "MASTER"
V "SLAVE"
V "MASTER"
V "SLAVE"
" earth terminal to the circuit to be powered.
This output is designed to power logic circuits at 3 or 5 volts with consumption
up to 5 A.
Initial V "MASTER" /
conditions V "SLAVE"
(a) +12 V
1 / 1
(b) -12 V
(a) +24 V
2 / 1
(b) -12 V
(a) +12 V
1 / 2
(b) -24 V
Δ V
causes
"MASTER"
+3 V
+3 V
-3 V
-4 V
-4 V
+2 V
+2 V
+2 V
-4 V
Results
+15 V
-15 V
+20 V
-10 V
+14 V
-28 V
25