AF10 – PWM generator
for laboratory and test stand use
- Frequency range: 0.1 Hz to 1 MHz
- Duty cycle: 0 % to 100 %
(-100 % to +100 % for external H-bridge)
Resolution: 0.1 % / 5.95 ns - On PC programmable ramp functions of duty cycle, frequency and voltage – data transfer via USB stick
- Generates up to 6 phase locked control signals for external power modules
- Large display forStatus view
- Setup
- Graphic display of PWM signals (oscilloscope mode)
- Adjustable language for user interface
- Power supply with large input voltage range:
100 VAC to 250 VAC 50/60 Hz,
130 VDC to 350 VDC
- Selectable push-pull and open drain
- outputOutput current up to 1 A
- Adjustable output voltage: 3 V to 24 V
- Short-circuit and overvoltage protection
- Reverse current sink capability (e.g. motor brake)
- TTL output 3.3 V/5 V
- Extension port
- 4 outputs for controlling external modules such as half and full bridge
- 2 outputs for controlling the active rectification of full bridge converters
- Programmable timing features (dead-time, delays, . . .)
- 1 analog input to adjust the duty cycle via external control
- Galvanically isolated PLC interface
- Analog input (0 to 5 V) for external control of duty cycle
- 6 digital inputs to choose from up to 63 stored duty cycles
- Start/stop input control of ramp function
- RS232 Interface (option)
- Remote control of duty cycle, frequency and output voltage
- Switching On and Off the PWM output
- Update rate up to 1 kHz
- Readback of actual PWM settings
Der AF10 ist in drei Varianten verfügbar.
Während die Basic-Version grundlegende PWM-Funktionalität bietet, besitzt die Automation-Variante eine Schnittstelle, um den PWM-Generator von außen fernzusteuern, als auch eine Rampen-Funktion, um programmierbare Tastverhältnis-Verläufe auszugeben.
Die Engineering-Variante ermöglicht es schließlich, externe Leistungsmodule unterschiedlicher Topologie über das Extension-Interface anzuschließen und anzusteuern.
Bei bereits gekauften Geräten ist jederzeit ein Upgrade auf eine höhere Variante per Freischaltschlüssel möglich, den Sie auf Anfrage bei uns erwerben können. Das Gerät muss dazu nicht eingeschickt werden.
| Varianten | Basic | Automation | Engineering |
| PushPull-Ausgang 3 V bis 24 V / 1 A | X | X | X |
| OpenDrain-Ausgang bis 30 V / 1 A | X | X | X |
| Kurzschluss- und Überspannungsschutz | X | X | X |
| TTL-Ausgang 3,3 V/5 V | X | X | X |
| Frequenz 0,1 Hz bis 1 MHz | X | X | X |
|
OUT-Anschluss rückspeisefähig (z.B. für Motorbremse) |
X | X | X |
|
Rampen-Funktion PWM-Verläufe in Excel erstellen und per USB-Stick übertragen |
X | X | |
galvanisch isolierte SPS-Schnittstelle |
|||
| 6 Digitaleingänge zur Duty-Cycle-Vorwahl | X | X | |
| 1 Digitaleingang zur Steuerung der Rampen-Funktion | X | X | |
| 1 Analogeingang zur externen Duty-Cycle-Einstellung | X | X | |
| 1 TTL-PWM-Ausgang (5 V) | X | X | |
| 1 Analogausgang (0 V bis 5 V, 0 % bis 100 % Duty Cycle) | X | X | |
Extension Port |
|||
| 6 PWM Kanäle (TTL) | X | ||
| High-Side-Switch-Mode | X | ||
| Low-Side-Switch-Mode | X | ||
| 2 Halfbridge-Modes (für Motoransteurung ±100 %) | X | ||
| Fullbridge-Mode (Forward Converter) | X | ||
| Fullbridge-Mode (Forward Converter) + Aktivgleichrichter | X | ||
| 12-V-Treiberversorgung | X | ||
| Analoger-Rückkanal (0 V bis 5 V) | X | ||
optionale Erweiterungen |
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| 8 Open Drain PWM-Ausgänge 30 V/100 mA 500 kHz max |
X | X | X |
| RS232-Modul zur Fernsteuerung des AF10 | X | X |
The AF10 is a highly flexible PWM generator for laboratory and test stand use.
Its output operates in a voltage range from 3 to 24 V and is low-resistance, so that it can deliver currents up to 1 A. This distinguishes it significantly from conventional function generators. If the output power of up to 24 W is insufficient, it can be increased to higher output voltages and currents using power modules available as an option.
The interface to external power modules is disclosed and documented, so that the user can very easily develop and operate his own modules.
A ramp function makes it possible to output freely programmable PWM traces, whose duty cycle, frequency and amplitude can be modulated. A detailed description of this function is given in a separate article:
Advanced ramp functions
For test stand operation, the AF10 has further essential characteristics besides the ramp function:
- Optional 8/24 open drain outputs to control 8/24 test pieces
- Galvanically separated SPS interface for remote control of the duty cycle
- Optional galvanically separated RS232 interface for remote control of duty cycle, frequency and voltage
- Restart of the last function after an interruption in power supply
- . . .
In laboratory operation the AF10 can be used for the most varied development and analysis scenarios. An incomplete list of possible use scenarios is given in the following separate article:
Application examples for the AF10 PWM generator
Based on the AF10 we develop customized PWM generators and laboratory devices to control for example actuators, solenoid valves, active chassis components, electromagnets, or also any other applications.