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![Functional block diagram][block]
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![Functional block diagram][block]
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![Functional block diagram][int]
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The interrupter generates the signal which drives the resonant circuit (coil rig) at its resonant frequency $f_0$. As long as the input signal X2 is active the output is driven at the resonant frequency $f_0$. It does this by the means of a positive feedback loop. The feedback signal X8 is retrieved with a sensing transformer around the output wire from the power amplifier, before being clamped, rectified, and schmidt triggered. The positive flanks of this signal represents when the output current passes zero (this is when we want to switch the polarity of the output). This signal is fed to the output via gates controlled by a latch, the signal to one of the outputs is inverted (for push-pull operation).
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The interrupter generates the signal which drives the resonant circuit (coil rig) at its resonant frequency $f_0$. As long as the input signal X2 is active the output is driven at the resonant frequency $f_0$. It does this by the means of a positive feedback loop. The feedback signal X8 is retrieved with a sensing transformer around the output wire from the power amplifier, before being clamped, rectified, and schmidt triggered. The positive flanks of this signal represents when the output current passes zero (this is when we want to switch the polarity of the output). This signal is fed to the output via gates controlled by a latch, the signal to one of the outputs is inverted (for push-pull operation).
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... | @@ -10,4 +11,5 @@ The function of L1 and R2 is to introduce a phase lead on the voltage of X8 in r |
... | @@ -10,4 +11,5 @@ The function of L1 and R2 is to introduce a phase lead on the voltage of X8 in r |
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The function of the network connected to the reset (RD) of the latch (U1A) is to reset the latch after a delay in the case that a zero crossing is not detected on X8 after X2 goes low. When X2 goes high the input of U2D goes low immediately due to the capacitor C2 being discharged through D7, but when X2 goes low the capacitor will be charged through R3 and there will be a delay before the latch is reset.
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The function of the network connected to the reset (RD) of the latch (U1A) is to reset the latch after a delay in the case that a zero crossing is not detected on X8 after X2 goes low. When X2 goes high the input of U2D goes low immediately due to the capacitor C2 being discharged through D7, but when X2 goes low the capacitor will be charged through R3 and there will be a delay before the latch is reset.
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[block]: https://git.omegav.no/teslakom/tesla-driver/raw/d2d7778ce2622e575c000e47d06abbeb06c9554b/01_Documentation/Figurer/FunksjonsBlokkskjema.png "Functional block diagram" |
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[block]: https://git.omegav.no/teslakom/tesla-driver/raw/d2d7778ce2622e575c000e47d06abbeb06c9554b/01_Documentation/Figurer/FunksjonsBlokkskjema.png "Functional block diagram"
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[int]: https://git.omegav.no/teslakom/tesla-driver/blob/bakplan/01_Documentation/Figurer/TK514_Interrupter.png "Interrupter schematic" |
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