Clipper Test Probe Operating Instructions
P/N CLP1500V15A1 V1.3
Page 4
Applications
The Clipper is perfect for observing the Rds(on) of a switched FET, or IGBT.
With an Oscilloscope set to 200mV /division, the stability of Rds(on) over a
range of say 200mΩ to 1Ω can be clearly seen in good resolution, while the
power transistor is switching.
More details and full specifications and application help can be found on
our Website:
www.springburo.weebly.com
Contents of Packing
The Clipper and accessories are delivered in an Aluminium case as shown in
Fig 1:
Accessory List (ref Fig 2):
Pos
Type
Spec
Qty
1
SMA to SMA Male
12GHz, 50Ω
2
2
SMA BU P
50Ω
4
3
SMA BNC Plug
50Ω
1
4
SMA BNC Socket
50Ω
1
Clipper Test Probe Operating Instructions
P/N CLP1500V15A1 V1.3
Page 5
Fig 2: The accessories are provided to allow different connection
possibilities.
Operating Details
Overview
The Clipper is operated as follows:
Firstly, make sure DUT is switched OFF !!
INPUT:
1: Connect Solder terminals to SMA
2: /- connections to DUT
3: Screw SMA onto Clipper using SMA to SMA adapter
OUTPUT:
4: Connect 10X scope probe to BNC terminal of Clipper
5: Set Range switch to either HI (12V) or LO(2V).
6: Adjust Oscilloscope to correct sensitivity (e.g. 200mV or 2V/Div)
depending on Range setting.
7: If using current probe, set Oscilloscope channel accordingly, and use
MATH function to display Rds(on) = Vds/Ids
8: Switch on DUT and observe Rds(on)
1
2
3
4