RFGM-1.00-50 RF Generator Module
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Specifications
- Product Name: RFGM-1.00-50 RF generator module
- Model: RFGM-1.00-50
- Output Power: Full output power
- RF Output Connectors: JST B3P-VH
- Input Voltage: +48VDC
- Output Signals:
- RF CURRENT: 0-3V, 3:1 calibration
- RF VOLTAGE: 0-2.5V, 1:100 calibration
- Interfaces:
- RS-232: TXD, RXD, GND_RS, +5VDC, RF ENABLE
- AUX: FAULT, GND_AUX
- LED Indicator: Green
Product Usage Instructions
1. Cooling
The board design is efficient, and active cooling is not
required even for continuous operation at full output power.
2. Connectors and Pins
RF OUTPUT 1…5: Use JST B3P-VH connectors.
Only one output connector can be active at a time. Selection is via
digital RS-232/RS-485 interface.
48VDC INPUT: Use JST B04B-XASK-1 connectors for
+48VDC and GND.
MONITORS: Use JST B04B-XASK-1 connectors for RF
CURRENT and RF VOLTAGE signals.
AUX INTERFACE: Use JST B03B-XASK-1 connectors
for FAULT and GND_AUX signals.
RS-232 INTERFACE: Use JST B06B-XASK-1
connectors for TXD, RXD, GND_RS, +5VDC, and RF ENABLE signals.
3. Mounting and Grounding
Mount the RFGM board using 6 M3 screws and studs with a
recommended stud height of 10mm. Follow the grounding policy
guidelines provided in the manual.
FAQ
Q: Is protective grounding required for the RFGM board?
A: No, protective grounding is not needed as HF circuits and
interfaces are isolated from power circuits.
Q: How should I measure the RF output?
A: It is strongly recommended to use differential probes for
accurate measurements. Conventional probes can be used but may
result in distorted measurements.
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rev 1.04 / 2025 01 28
RFGM-1.00-50 RF generator module
User manual
Warning! This equipment may be dangerous. Please read the entire user manual carefully before using the product.
Table of content
TABLE OF CONTENT ………………………………………………………………………………………..2 OVERVIEW ……………………………………………………………………………………………………3 APPEARANCE………………………………………………………………………………………………… 3 BLOCK DIAGRAM ……………………………………………………………………………………………4 COOLING……………………………………………………………………………………………………… 4 CONTENTS OF DELIVERY ………………………………………………………………………………….4 CONNECTORS, PINS, SIGNALS……………………………………………………………………………5 TECHNICAL NOTES………………………………………………………………………………………….7 SPECIFICATIONS …………………………………………………………………………………………….8 DIMENSIONAL DRAWING ……………………………………………………………………………….10 HOW TO ORDER?………………………………………………………………………………………….11 APPENDIX 1. DEMO SOFTWARE, ITS DESCRIPTION ……………………………………………….12 APPENDIX 2. RS-232 / RS-485 COMMUNICATIVE PROTOCOL, ITS DESCRIPTION ………….13
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Overview The RFGM-1.00-50 is a digitally controlled RF generator board, designed for use in aesthetic equipment, delivering 1MHz sine wave to a human body. Board’s main characteristics are as follows: · 48VDC input (24VDC on request) · 5x switchable outputs · 1MHz output frequency (fixed, other on request) · 50W maximum output power (achieved in 50-1000 Ohm range of load impedances) · Safety as per IEC 60601-1 and IEC 60601-2-2 · RS-232 and analogue user interfaces (RS-485 on request) The output power is user adjustable, accurate and actively stabilized in wide range of load impedances. Module measures, calculates, and returns to the customer all essential load characteristics (output power, reflected power, load impedance and so on).
Appearance
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Block diagram
Cooling The board design is very effective and therefore RFGM-1.00-50 doesn’t require any active cooling even for continuous operating at full output power.
Contents of delivery By default, the delivery package contains the RFGM-1.00-50 generator board only. The following set of cables can be purchased optionally: · RF output cable 5pcs (30cm each) · 48VDC input cable 1pc (30cm) · MONITORS cable 1pc (30cm) · AUX INTERFACE cable 1pc (30cm) · RS-232 cable (RS-485 cable) 1pc (3m) · USB/RS-232 adapter (USB/RS-485 adapter) 1pc · USB Flash drive with software 1pc Customized delivery content is available on request.
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Connectors, pins, signals
RF OUTPUT 1…5: JST B3P-VH
Designation RF POWER –
Pin
Description
RF power is delivered to these two pins.
Only one output connector may be active at a time. 1, 3 Selection of the active output connector is possible via
digital RS-232 / RS-485 interface only.
See also the Technical notes section.
2 N/C
48VDC INPUT: JST B04B-XASK-1
Designation +48VDC GND
Pin
Description
1, 2 Low voltage power supply connection. Input voltage 48VDC (24VDC on request).
3, 4 Maximum current consumption 2A.
MONITORS: JST B04B-XASK-1
Designation RF CURRENT
Pin
Description
RF CURRENT is the analogue output signal linear with
1
the actual output current (RMS value), signal amplitude is 0…3V, calibration is 3:1 (i.e. 3V on PIN 1 correspond
to 1A of the actual output current).
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GND_AUX RF VOLTAGE GND_AUX
Return of RF CURRENT signal.
2 Pins 2 and 4 are galvanically connected, although are separated with filters.
RF VOLTAGE is the analogue output signal linear with
3
the actual output voltage (RMS value), signal amplitude is 0…2.5V, calibration is 1:100 (i.e. 1V on PIN 3
corresponds to 100V of the actual output voltage).
Return of RF VOLTAGE signal.
4 Pins 2 and 4 are galvanically connected, although are separated with filters.
AUX INTERFACE: JST B03B-XASK-1
Designation
FAULT
GND_AUX –
Pin
Description
FAULT is the output signal (open collector type) indicating the abnormal behavior of the board.
The signal is set active in the following cases:
1
– Board’s overheating
– Overcurrent at the output
– Short-circuit at the output
– Buffer voltage failure
2 Return of the FAULT signal.
3 Reserved for the future use.
RS-232 INTERFACE: JST B06B-XASK-1
Designation TXD RXD GND_RS +5VDC
RF ENABLE
Pin
Description
1 RS-232 TXD signal.
2 RS-232 RXD signal.
3, 6 Return of RS-232 INTERFACE signals.
4
Auxiliary output signal, provides 5VDC voltage with approx. 180mA current capability.
Input signal, 5V TTL, can be used for remote 5 enabling/disabling the board in stand-alone operations
(i.e. without any digital connection to the board).
LED:
There is the only LED onboard (green) indicating that the RFGM board is powered up.
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MOUNTING AND GROUNDING:
The RFGM board should be mounted using 6pcs M3 screws and studs. The recommended stud height is 10mm.
Grounding policy The following considerations should be taken into account: 1. No protective grounding is needed. 2. HF circuits (RF OUTPUTS) and all interface circuits (MONITORS,
RS-232, AUX) are isolated from the board’s power circuits (48VDC INPUT and derivative HV circuits). 3. It’s recommended to keep RFGM’s heatsink ungrounded (i.e. not connected to the chassis).
Technical notes
OUTPUT MEASUREMENTS
We strongly recommend to measure RF output with differential probes only.
It is safe to use conventional (non-differential) probes, but the measurement results as well as board behavior (including but not limited to forward and reflected power measurements) will be significantly distorted. Such measurements (and resulting affection to the board behavior) are sensitive to the polarity and their results will be more correct (or rather less incorrect) if the following polarity of the connection is used:
· Probe to PIN 3 of RF OUTPUT connector · Probe ground to PIN 1 of RF OUTPUT connector
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Specifications
ELECTRICAL
General
Product description
RF power board that generates 1MHz
sine wave to be applied directly to a
human body to perform various types
of aesthetic treatments
Input
Voltage
48VDC (24VDC on request)
Current consumption
<2A
Output
Number of outputs
5pcs (relay connected, only one output
can be active at a time)
Load impedance
50-1000 Ohm (nominal)
It’s presumed that the load impedance
is mostly active (human body) and the
output circuits do not contain any
parts with significant capacitance or
inductivity
Frequency
1.00MHz (fixed, other on request)
Waveform
Sine wave
Max. power
50W (in 50-1000 Ohm range of load
impedances, derated at >1000 Ohm
impedances)
Duty cycle
0-100% (in 50-1000 Ohm range of
load impedances)
Power adjustment
0.5W to 50W
Power accuracy / stability Better than 10% of set point
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Interfaces Analogue
Digital Other
Protections
Embedded output measurement functions Safety
Cooling Environment
Operating temperature Storage temperature Humidity
A set of TTL and analogue signals (Enable, Fault, Current monitor, Voltage monitor) RS-232 by default, RS-485 on request
– Overtemperature protection – Full open-circuit protection – Full short-circuit protection – Output power, reflected power – Load impedance – Output current, output voltage – RF outputs are separated from secondary circuits as per IEC 60601-2-2, although not from each other – SELV (interface) circuits are galvanically isolated from high voltage circuits as per IEC 60601-1 Conductive cooling
0…40 C -20…+60 C <90%, non-condensing
MECHANICAL
Dimensions (LxWxH)
Weight
Approx. 180x100x30mm (see also the dimensional drawing below) Approx. 0.9kg
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Dimensional drawing 10
How to order? By default, there is the only standard part number, namely the RFGM-1.00-50. The following options are available on request: · 24VDC input power instead of 48VDC · RS-485 interface instead of RS-232 · Custom frequency of operations · Customized cables
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Appendix 1. Demo software, its description There is a demo software utility, which can be supplied for free together with the RFGM-1.00-50 generator board to simplify its integration into the customer’s system. Please request the download link or a USB flash drive with a copy at the time of ordering the RFGM-1.00-50 board.
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Appendix 2. RS-232 / RS-485 communicative protocol, its description A complete description of the current version of the RS-232 / RS-485 communication protocol is supplied with the RFGM-1.00-50 generator board. Please request the description from the manufacturer if you need it in advance.
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Documents / Resources
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OEM Tech RFGM-1.00-50 RF Generator Module [pdf] User Manual RFGM-1.00-50, RFGM-1.00-50 RF Generator Module, RF Generator Module, Generator Module, Module |