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VIC Driving Circuits 

 

Exploring all combinations of Stan's driver circuitry and its evolution from the early patents through the resulting refinement.

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This Work Was Done by a Home Builder as a Summary of the Drive circuit. 

Below your will find historical Stan Legacy Teams Explanations

Simplest 2 Channel Modulator

Stanley A Meyer VIC Driver.jpg

Mixing effects of true analog amplitude modulation using 2 pots and 2 opto-couplers

It's amazing what you can do with 2 optos and 2 pots  

10 Channel LM317 driver using CD4017

 

Using a 10 channel decoded decade counter CD4017, and a 7414 Schmidt Inverter to flip-flop toggle the ENABLE and RESET pins on the decade counter, which allows controlling a specific number of sequential channels activated, each train.

 

The downside, is that no Gate Off Time is possible, as the counter just restarts at channel 1 during the cycle.

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CD4017 10 channels directly drive 10 - H11D1 opto-couplers. At +5V REG TTL, 82R nets 60mA max current for the photo-diode. 2nd stage pots are then used to attenuate the pulldown current of the LM317 in sequenced order.

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Attenuation can be linear, as in consecutive 10% increments, or any combination desired to achieve various waveshapes

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LM317 Power supply adapted from Stanley A Meyers board design.

Duty cycle is strictly limited to 50%.

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Stanley A Meyer VIC Driver.jpg

Historical References - in stans words from Gas Management System GMS
Nano Bubble Water Fuel and Gas Production on Demand control System.
Component card from Technical guide from Stanley A Meyer.

Analog Voltage Generator (K8) Patent WO 92/07861

According to the Birth Tech section, the Analog Voltage Generator's purpose is to produce the digital signal from the digital control means board into a voltage signal. 

Analogue Voltage Generator.png

"M" comes from Digital Control Means circuit. Its signal is applied to a series 1k-ohm resistor to the base of the 2N3906. This being a PNP BJT because the logic signal passed through an inverter prior to entering 2N3906 (see digital control means page). The 2N3906 produces a positive polarity, amplified signal. Signal goes through two other BJT stages, 2N3904 and another 2N3906 that are base biased configuration. "Manual Speed Calibration" is a simple potentiometer with wiper arm connected to a SPDT switch. This allows selection to inverting pin #2 of LM741 Op-Amp if desired. 

Analogue Voltage Generator 2.png

Figure 1: Analog Voltage Generator is a part of Digital Control Means, in the GMS Unit. 

Analogue Voltage Generator 3.png

Variable Pulse Frequency Generator (K2) Patent WO 92/07861

COMPONENTS UTILIZED:

  1. 555 Timer IC

  2. 74LS90 Decade Counter ICs

  3. 74LS04 Inverter IC

  4. Rotary Switches

  5. 2 – 4.7kΩ Resistors

  6. 1 – 100kΩ Potentiometer

  7. 1 – 1kΩ Resistor

  8. 01uF Electrolytic Capacitor

  9. 1 - 220Ω Resistor

  10. 1 – 5mm LED

STAN MEYER DESCRIPTION:

 

Source: Birth of New Technology, 3-6, WFC Memo 422.

Variable Pulse Frequency Generator.png

FIGURE 3-5 / CIRCUIT (70):

Variable Pulse Frequency Generator 2.png
Variable Pulse Frequency Generator 3.png

FIGURE 3-16:

Variable Pulse Frequency Generator 4.png

PATENT SCHEMATIC:

Variable Pulse Frequency Generator 5.png

The Variable Pulse Frequency Generator is the master time base for the “processing” of the Gas Management System.

Manual switch, “Gas Type” provides selection between two different variable resistance sections to allow varying frequency of 555 IC (RC time curve). Estate photos, and other sources, have provided values for these first three resistors. 4.7kΩ, 100kΩ potentiometer, 4.7kΩ, and 1kΩ in series with 0.01uF capacitor, provides a variable RC time constant. Below is a schematic breakdown of the RC network when the potentiometer is near 0 value:

Variable Pulse Frequency Generator 6.png

Resistances in series will add accordingly: (4.7kΩ + 0kΩ + 4.7kΩ = 9.4kΩ)

9.4kΩ becomes the equivalent series resistance, and can be seen in effect, as a single summation of resistance:

Variable Pulse Frequency Generator 7.png

We can view the series summation as seen below:

Variable Pulse Frequency Generator 8.png

Stan uses the 555 in an Astable oscillator mode. By using the below formulas, we can determine variables such as the frequency, and period:

Variable Pulse Frequency Generator 9.png

R1 being the equivalent series resistance. R2 being the 1kΩ. C1 being 0.01uF (10nF) in the case of Meyer’s circuit.

Plugging the values mentioned above we arrive at the following parameters:

 

  • Potentiometer to minimum (~0 assumed), plus 2 – 4.7kΩ, 9.4kΩ):

Variable Pulse Frequency Generator 10.png

Frequency is: 12.65kHz.

Variable Pulse Frequency Generator 11.png

Time High (T1) = 72.072uS (0.072mS)

Variable Pulse Frequency Generator 12.png

Time Low (T2) = 6.93uS (0.0069mS)

 

Period (T) = 79.002uS (0.079mS)

Duty Cycle: 91.23%

Duty cycle here is calculated to by 91.2% time high and 8.78% time low.

When we turn the potentiometer to maximum value, we change the equivalent series resistance value to 109.4k:

Variable Pulse Frequency Generator 13.png

  • Potentiometer to maximum (100kΩ assumed), plus 2 * 4.7kΩ (total = 109.4kΩ):

Variable Pulse Frequency Generator 14.png

  • ​Frequency is: 1.29kHz.

Variable Pulse Frequency Generator 15.png

  • Time High (T1) = 765.072uS (0.765mS)

Variable Pulse Frequency Generator 16.png

  • Time Low (T2) = 6.93 uS (0.0069mS)

  • Period (T) = 772.0 uS (0.772mS)

  • Duty Cycle: 99.1%

  •  

  • It can be seen that the duty cycle of the 555 isn’t 50/50. Passing the output of 555 into cascaded decade counters produces a steady 50/50 duty cycle as the internal shift registers are rising edge triggered. From the above calculations, the frequency ranges in the bottom example provide functionality overview of divide by 10 of the frequency out of Pin #3 of:

Variable Pulse Frequency Generator 17.png

  • Rotary switches provide selectivity of frequency for each output to other circuit stages. Inverter IC inverts the frequency pulse polarity to produce a LOW logic state for other circuit stages. According to the patent it can be understood that rotary switch provides select-ability for frequency range to other areas of the circuits. The Pulse Generator essentially provides a time base to these other circuit sections.

  • G to K11 provides increment pulses to pin #5 on 74193 binary counter chips to allow sequencing through 0 – 15.

  •  

  • Q to K10 provides time base of some sort to Injection card? These needs revisited.

  • B to K3 provides signal to Gated Pulse Frequency Generator

  • C to K3 [Unknown at this time]

  • FIGURE 1: Oscilloscope shot of duty cycle, frequency directly out of pin #3 of 555.

Variable Pulse Frequency Generator 18.png

  • The Birth of New Technology specifically states a frequency range of up to 10kHz or above, while maintaining a 50/50 duty cycle. It can be seen from above that the duty cycle at 10kHz isn’t 50%. The circuit board photos indicate the values written on the patent pages were correct. This indicates that the frequency, while maintaining 50% duty cycle, could only be maxed out at 1kHz.

  •  

  • In order to provide a 10kHz signal, with a duty cycle of 50%, the 555 frequency would need a high range of 100kHz. This, through the 7490s, would allow 10kHz, 1000kHz, 100Hz. To achieve this, RC values would need to be 0-100k potentiometer, 220Ω (replace 1k), 0.01uF capacitor. This would produce a 100kHz frequency out of pin #3.

  • FIGURE 2: Below scope shot shows the frequency divisions between Pin#3 (yellow) out of 555 (~10kHz) and the output of the first 7490, pin#12 (blue). Frequency out of first 7490 is 1kHz.

Variable Pulse Frequency Generator 19.png

  • FIGURE 3: Below scope shot shows the frequency divisions between output pins (#12) of the second 7490 (blue) and pin #3 of 555 (10kHz / yellow).  Frequency out of 2nd 7490 is 100Hz.

Variable Pulse Frequency Generator 20.png

  • FIGURE 4: Below scope shot shows the frequency divisions between output pins (#12) of the third 7490 and pin#3 of 555 (10kHz). Frequency out of second 7490 is 10Hz.

Variable Pulse Frequency Generator 21.png

  • FIGURE 5: To further illustrate the mechanism of dividing by 10 within the 7490s, below is a comparison between the output (pin #12) of the first 7490 and the second 7490. First is 1kHz, the second is 100Hz.

Variable Pulse Frequency Generator 22.png

  • The rotary switches allow independent frequency selections for the other systems of the GMS. Figure 6 demonstrates this by showing oscilloscope shot of the frequency differences. Yellow is at 100Hz, blue is at 10Hz.

Variable Pulse Frequency Generator 23.png

  • FIGURE 6: Frequency differences between two independent channel switch selections.

Variable Pulse Frequency Generator 24.png

  • The independent channels selected via rotary switches go through the 7404 hex inverters to produce a low logic signal. One controls the flash rate of the panel LED. Other inverted channels go to Accelerator control, water injector boards, gated pulse frequency generator, etc.

Variable Pulse Frequency Generator 25.png

  • FIGURE 7: Below is a scope shot of the input from decade counter (divide by 10) to the 7404-inverter chip, and the respective outputs. Demonstrating a 180-degree phase difference.

Variable Pulse Frequency Generator 26.png

SUMMARY 

Secure Supplies Redrew made tested and merged ALL THE DRIVER CARDS into Db 37 pin adapter and made the GMS main board tested and Merged into a NEW single system and deployed it into Hydrogen Hot Rods Globally. 

OHH YEAH!!!!!!

GUIDES ARE AVAILABLE TO PATREONS

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