Powersolve PS50W Series - Manual (Page 4)

Powersolve Electronics Ltd. Units 8A, Arnhem Road, Newbury, RG14 5RU. England
Tel:01635 521858 Fax: 01635 523771 Email: [email protected]
www.powersolve.co.uk
4
Remote ON/OFF Control
External Output Trimming
Output Noise
The PS50W Series allows the user to switch the module on and off electronically with remote on/off feature.
The PS50W Series are available in "positive logic" or "negative logic" (option).
Output may optionally be externally trimmed (+10%) with a fixed resistor or an external trimpot as shown.
The output noise is measured with 10 µF tantalum capacitor and 1.0µF ceramic capacitor across output.
HIGH SIGNAL HERE
DISABLE OUTPUT
ON/OFF (2)
-VIN (4)
+SENSE (8)
-SENSE (6) -SENSE (6)
TRIM (7) TRIM (7)
+SENSE (8)
TRIM DOWN
10K ohms
TRIMPOT
TRIM UP
+Vout (9)
-Vout (5)
Ceramic
1.0µF
Solid tantalum
10µF
To
Scope
Resistor
Load
Negative
Logic Table
Logic Positive Logic
Logic Low -
Switch Closed
Logic High -
Switch Open
Module on
Module off
Module off
Module on
Logic State
(Pin 2)
External Output
Output Noise Test Circuit schematic
AL HERE
D OUTPUT
ON/OFF (2)
-VIN (4)
+SENSE (8)
-SENSE (6) -SENSE (6)
TRIM (7) TRIM (7)
+SENSE (8)
TRIM DOWN
10K ohms
TRIMPOT
TRIM UP
t (9)
- t (5)
Ceramic
1.0µF
Solid tantalum
10µF
To
Scope
Resistor
Load
Negative
Logic Table
Logic Positive Logic
Logic Low -
Switch Closed
Logic High -
Switch Open
Module on
Module off
Module off
Module on
Logic State
(Pin 2)
External Output
Output Noise Test Circuit schematic
HIGH SIGNAL HERE
DISABLE OUTPUT
ON/OFF (2)
-VIN (4)
+SENSE (8)
-SENSE (6) -SENSE (6)
TRIM (7) TRIM (7)
+SENSE (8)
TRIM DOWN
10K ohms
TRIMPOT
TRIM UP
+Vout (9)
-Vout (5)
Ceramic
1.0µF
Solid tantalum
10µF
To
Scope
Resistor
Load
Negative
Logic Table
Logic Positive Logic
Logic Low -
Switch Closed
Logic High -
Switch Open
Module on
Module off
Module off
Module on
Logic State
(Pin 2)
External Output
Output Noise Test Circuit schematic
All Specifications Typical At Nominal Line, Full Load and 25°C Unless Otherwise Noted.
High Density DC-DC Modules