Generation of basic periodic signals
Function Generators
V - 35
Generation of basic “CONT” periodic signals (contd.)
Setting the duty cycle
The duty cycle can only be adjusted for square, logic or triangle forms using the
“CONTinuous” function.
The setting can be limited depending on the signal frequency.
Signal
Frequency
Possible adjustments
Square
Logical
≤
200 kHz
200 kHz < F
≤
1 MHz
F > 1 MHz
10 to 90 %
20 to 80 %
50 %
Triangle
F < 0.2Hz
0.2Hz
≤
F
≤
1 kHz
1 kHz < F
≤
10 kHz
F > 10 kHz
50%
10 to 90 %
30 to 70 %
50 %
or
Assignment of the duty cycle to the wheel. The key lights:
.
Setting the value.
1s
Forces the duty cycle value to 50 %.
The duty cycle is limited by the frequency, turning the wheel may have no
effect.
Setting the signal
amplitude
Amplitude indications are given in open circuit.
Under 50
Ω
Ω
Ω
Ω
, amplitudes are divided by 2.
or
Assignment of amplitude adjustment to the wheel. The key lights:
.
Adjustment of the Vpp or Vrms value depending on the selected display.
Vpp/Vrms display
1s
Switches from Vpp to Vrms display and vice versa
The variation is from 0 to 20 Vpp in open circuit.
The sum of continuous v alternating voltage cannot be
>>>>
± 10 V.