Now I have the software working. To get more power I have two PCG10 in serial then I get approximately 10 Volt Output. It is easy with PCG10 because there is a LPT output port on each PCG10 to connect another device. But how should work with PCGU1000. I have testet to connect 2 devices on 2 different USB - Ports or on an USB Hub but this does not work for 2 devices. The system only detects one of the devices. How can I work with 2 PCGU1000 in serial with my software or is there a possibility to amplify the entire signal range of the PCGU1000.
Sorry, running more than one instance of the generator program is not possible.
I suggest an external amplifier.
If you increase the internal amplifier gain by changing a resistor value inside the generator, then the warranty is void.
[quote=“VEL255”]Sorry, running more than one instance of the generator program is not possible.
I suggest an external amplifier.
If you increase the internal amplifier gain by changing a resistor value inside the generator, then the warranty is void.[/quote]
I was looking for an amplifier which works for the whole frequency range. But I have not found any. Which one do you suggest ? Or does Velleman produce such a device ? It should also not be to expensive !
Can you please be more specific,
Maximum output voltage (Vrms)
Maximum output current
Maximum frequency range
What kind of waveform
Please do not overrate your specs, if 500kHz is needed do not specify 1MHz.
[quote=“VEL436”]Can you please be more specific,
Maximum output voltage (Vrms)
Maximum output current
Maximum frequency range
What kind of waveform
Please do not overrate your specs, if 500kHz is needed do not specify 1MHz.[/quote]
I need the frequencies for medical use. The Output Voltage should be constantly from 5 to 15 Volt on positive Offset. The amplifier should amplifier sine and square waves. When I measure the voltage without an amplifier using a Voltmeter with positive offset waves the maximum Voltage is about 4 to 5 Volt. I need up to 15 Volt for the whole frequency range (from 1 Hz to 25 000 000 Hertz (userdefined waveforms). If this is not possible I need from 1 Hertz to 2 000 000 Hertz.
Unfortunately we have no amplifier in our range.
Please check the web for preamplifiers that can handle 2MHz square wave up to 2MHz.
Tou will have to specify also the output current / impedance
[quote=“VEL436”]Unfortunately we have no amplifier in our range.
Please check the web for preamplifiers that can handle 2MHz square wave up to 2MHz.
Tou will have to specify also the output current / impedance[/quote]
I think you are more expert than I in this section. I am looking since one year for such an amplifier and I have not found one. Please help.
I would be satisfied if you would find a device, which amplifieres frequencies from 100 000 to 1 000 000 Hertz or you could make it possible to connect to PCGU1000 in serial.
Minicircuits has some amplifiers that may fit your need. Look in the following page:
minicircuits.com/products/am … eband.html
ZHL-6A goes from 2.5 kHz to 300 MHz. For higher output power (swing), ZHL-32A could be an alternative. Probably both can go lower in frequency than the spec says, but the gain may be off.
Both are note exactly cheap (cost about as much as your generator) but have BNC connectors - same as the generator, so they are easy to connect to the generator.
BTW, I’m not affiliated in any way with Minicircuits, just happen to use their products.
Wolfgang