I tried 5 years ago, however failed to get the ideal sound (smooth transition from async to 1P with less noise). Instead, you can refer to this video posted by other creator: ua-cam.com/video/gpLRxpE3gSs/v-deo.html
@@QuarioQuario54321 That’s incorrect. The chopper generates a PWM frequency that can be picked up by an inductor. Resistance/cam control cannot be recorded because it is changing the voltage with resistors rather than using PWM.
@@HIDLad001 But author can try to record the camshaft changing positions and contactors clicking😊 But i agree, DC thyristor control can be recorded clearly just like an AC traction, because both systems use PWM and pulsing current on the output to the motors.
That would be from the Random Carrier Frequency Modulation(RCFM) which is quite rare to find in GTO-VVVF drives, I think a few Alstom Pendolinos have it too but besides that, this might be the only GTO with RCFM to my knowledge.
@@minecraft_javjavatonkoonca8109 Yes! Theres a good number of PCFM GTO-VVVF in fact produced by companies such as Toyo Denki and Holec just to name a few, most of which are found in either Europe or Japan.
![[モハラジオ録音]【加減速パターン集】 京急新1000形 Keikyu N1000 Series Synchronous PWM Variations [Siemens GTO-VVVF]](http://i.ytimg.com/vi/k6a-WBrKEd8/mqdefault.jpg)
![[モハラジオ録音]【加減速パターン集】 京急新1000形 Keikyu N1000 Series Synchronous PWM Variations [Siemens GTO-VVVF]](/img/tr.png)
収録お疲れ様です。GTOでガッツリランダム変調とは珍しいVVVFですね。
Love it. Is there any chance of you catching a video of the Bombardier M7 IGBT VVVF sound as well?
I tried 5 years ago, however failed to get the ideal sound (smooth transition from async to 1P with less noise).
Instead, you can refer to this video posted by other creator:
ua-cam.com/video/gpLRxpE3gSs/v-deo.html
Nice! can you do the r211?
You should record the Breda A650 (both the Westinghouse chopper control and GE GTO-VVVF versions).
This doesn’t apply to chopper. Only AC
@@QuarioQuario54321 That’s incorrect. The chopper generates a PWM frequency that can be picked up by an inductor.
Resistance/cam control cannot be recorded because it is changing the voltage with resistors rather than using PWM.
@@HIDLad001
But author can try to record the camshaft changing positions and contactors clicking😊
But i agree, DC thyristor control can be recorded clearly just like an AC traction, because both systems use PWM and pulsing current on the output to the motors.
How did you make the inductor recorder? I want to get my hands on one of them.
@@w_avor I'm just using a 100mH inductor, and then do the craft for attaching lines to earphone jack so that can be connected to the IC recorder.
could you do the kawasaki b-iv used in philadelphia?
It has DC motors, probably not applicable
@@QuarioQuario54321 dc motors cant use this?
@@haziedabnuuy correct
Sound like igbt for asynchronous
That would be from the Random Carrier Frequency Modulation(RCFM) which is quite rare to find in GTO-VVVF drives, I think a few Alstom Pendolinos have it too but besides that, this might be the only GTO with RCFM to my knowledge.
Oh thanks
Is there pcfm gto vvvf
@@minecraft_javjavatonkoonca8109 Yes! Theres a good number of PCFM GTO-VVVF in fact produced by companies such as Toyo Denki and Holec just to name a few, most of which are found in either Europe or Japan.
Thanks