Com-Power CGC-510 Conducted Comb Generator 100 kHz - 30 MHz
Description
The CGC-255 and CGC-510 Conducted Comb Generators are reference signal sources for testing Line Impedance Stabilization Networks (LISN). The Comb generator output has the harmonics of the fundamental frequency. Each model has two switchable frequency step sizes. The model CGC-255 has 250 kHz and 50 kHz and the model CGC-510 has 500 kHz and 100 kHz frequency steps.
This Comb Generator simulates a EUT generating conducted EMI noise. The CGC series Comb Generators have a standard NEMA three blade connector that can plug directly into any LISN with the matching EUT power socket. Both models have high impedance to the external line voltage, AC or DC up to 230 V. This feature allows the Comb Generator to be used while the LISNs are connected to external power source.
The Comb Generators are powered by rechargeable NiCad batteries to avoid any external noise coupling. In addition, the Comb Generator’s internal monitoring circuits provide indication to the user when the battery drops below operating level. A fully charged battery will power the Comb Generator up to 16 hours.
Features
- Quick LISN Verification
- Switchable Frequency Steps
- Amplitude Stability: +/- 0.1 dB
- Battery Powered
Com-Power CGC-510 Application
The main application of the CGC series Comb Generators is to quickly verify conducted emissions test setups. These Comb Generators were designed to plug directly into the EUT power socket of the LISN. The conducted noise output level of the Comb Generators are close to or above the CISPR 22 limits as shown on the typical output plot on the back of this page.
Most EMI labs typically calibrate LISNs and other equipment (spectrum analyzers, cables, connectors, etc.) in the conducted emissions test setup at regular intervals. However, test equipment malfunctions may occur between any calibration intervals and may go undetected until the next calibration. In the meantime, these malfunctions may produce erroneous test results. This is unacceptable and can be avoided by using the Comb Generator as a reference noise source. With the Comb Generator, the test engineer will be able to quickly perform verification of the conducted test setup more frequently to assure accurate test results.
Other possible applications of the CGC series Comb Generator could include production evaluation of components, such as cable shields and filters.
Specifications
|
Model |
CGC-255 |
CGC-510 |
|
Frequency range |
50 kHz – 30 MHz |
100 kHz – 30 MHz |
|
Step Sizes |
50 / 250 kHz |
100 / 500 kHz |
|
LISN interface |
3 pin standard US male plug |
3 pin standard US male plug |
|
Power |
4.8 V NiCad |
4.8 V NiCad |
|
Charger input |
6 VDC, 500 mA |
6 VDC, 500 mA |
|
Weight |
1 lb / 0.5 kg |
1 lb / 0.5 kg |
|
Dimensions |
5 × 2.2 ×2.2 in 13.2 × 5.9 ×5.9 cm |
5 × 2.2 ×2.2 in 13.2 × 5.9 ×5.9 cm |
