GMW › Complete Document History General Specification for Electrical/ Electronic Components and Subsystems, Electromagnetic Compatibility Global. GMW, GMW and GMW (All three documents of specifications that apply to GMW EMC test The GMW EMC Test Plan (Appendix B). These requirements have “gone global” in the form of GM Worldwide (GMW) EMC .. GMW – Validation Acceptance Process (EMC Control Plan).
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Facility name including the test site designations where the tests were performed. Battery and Switched Battery e. Use the smallest capacitor that will do the job.
Packaging and distribution of goods It is easier and cheaper to remove the provisions later if not necessary based on testing than to add them. Indirect Access Remote Switch? Include a graphic indicating 3 orientations of probe relative to faces of DUT enlarge this area as necessary A3.
Direct Access Physical touching? If using a 2 layer board, run return next to HS digital and critical traces – micro strip protection. 33103
Additionally, 31003 Table A2 regarding specific design requirements. All non-electrical outputs to be monitored, including lamps, gauges, etc. All samples tested must pass all applicable tests. The bypass capacitor shall be connected directly 3130 the ground plane through the lowest impedance path.
All of the pins should have 1 nF to 15 nF capacitor that will not affect proper functionality. If signals are to be monitored via oscilloscopes, meters, etc. Variation will exist in the parts on test, but not representative of the variation from the production process.
Aircraft and space vehicle engineering Begin with 22 pF to 47 pF capacitors, increase until sinusoidal waveform is achieved. Test results obtained from testing prior to test plan approval shall not be published in a validation report. These test modes and functional performance metrics shall be detailed in Table A3. Conductive gaskets are recommended if: Turn off via software any and all? Use of pF to 10 nF on all signals is recommended. Provide a simple drawing to identify what specifically is isolated, what is grounded, what support equipment exists and where it will be placed.
C2, power input filter should provide 20 dB of attenuation at kHz using bulk storage electrolytic C[?
Company organization, management and quality. Provisions for current starving the?
It has 31103 found that sneak currents will reduce the effectiveness of the single VCC current starving device. The complete series consists of the following documents: Provisions for all 4 corners are acceptable, then determining best configuration during testing.
Use only low ESR capacitors. Removing Hump from Waveform B4. All high-speed control rise and fall times should be minimized or slowed down as much as possible.
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Specify special test arrangements that apply to this test. Review results of performed radiated emissions and immunity testing. Keep high speed lines within inner layers, placed between power and ground planes if possible. Field Effect Transistor FET devices may be capable of surviving these transients; however, bipolar devices will require extra protection e.
P on all traces leading to test connectors, to facilitate removal after product development is complete, reducing the radiated emissions risk.
If an internally slew rate controlled?
Resources needed for a successful EMC design review other specialists, engineers, purchasing or managers depending on situation and complexity. Shipping Delivery Order tracking Returns.
Access from Outside Vehicle Cabin? Materials handling equipment Shown below is an example test setup that provides information to the test lab about the DUT, the simulator, support equipment, and general connections.
Mechanical systems and components for general use This reduces the stray capacitance between the power structure and ground structure and enhances the performance of the current starving device resistor, inductor, or ferrite bead. Include any additional information required to support DUT operation during test, including data bus messages, and special test software.
Provide Name, Email, and Phone Number. More inductors and capacitors may be needed, tmw at different values.