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ADHOC Voltaggio Automotive voltage stabilizer

ADHOC Voltaggio
Voltaggio - voltage stabilizer



What is it ?

ADHOC Voltaggio Automotive voltage stabilizer


The Voltaggio is an automotive voltage stabilizer with a built in digital voltmeter. The purpose of this device, as with all automotive voltage stabilizers, is to reduce electrical noise and distortions within the vehicle. The reduction of such medium and high frequency electrical noises MAY result in a combination of the following positive effects:

  • Engine
  • Smoother engine and better engine response.
  • Optimized engine power and reduced exhaust emissions.
  • Lowered fuel consumption of typically 3%-6% and increased engine efficiency.

    (The three positive effects listed above are achieved through improved ignition performance, more precisely regulated fuel and ignition systems and more precise operation of electronics management systems via elimination of high-frequency voltage fluctuations.)
  • Electronics
  • Improved operation and precision of electronic control devices (optimal operation of ECU, TCU, sensors, electric power steering, etc.).
  • Improved operation of other noise sensitive miscellaneous electrical devices (audio system, etc.).
  • Increased lifespan of batteries, the charging system (alternator), and electronic devices through reduction of harmful electrical distortions.

    (The positive effects listed here are achieved trough reduction of electrical distortions that affects the electrical devices, electronic devices, the battery and the charging system.)


The performance of an electrical noise filtering device is measured by both its capacity as well as its impedance. However, the impedance plays a more critical role when it comes to high frequency noises that occur in the form of very short electrical impulses. The lower the impedance of the filtering circuit, the better its noise filtering ability is.

The Voltaggio uses a combination of low-ESR (equivalent series resistance) capacitors that are meant for high powered pulse-width modulated (PWM) power supplies that require such capacitors, and incorporate them in our device. The result is an ultra-low impedance filtering circuit that can accept and absorb high frequency electrical distortions that affects the electrical and electronic systems of the vehicle. The entire circuitry is designed to fit the overall concept of having an ultra-low impedance voltage stabilizer.

ADHOC Voltaggio Automotive voltage stabilizer


The digital voltmeter, on the other hand, is for the typical purpose of monitoring the voltage supply of the vehicle. This will provide information as to the condition and performance of the battery and the charging system (alternator), providing a far better indication of battery and alternator condition than the typical idiot lights on most car. The voltmeter display on the Voltaggio uses a non-multiplexed LED display driver, which means that all three digits on the voltmeter is displayed simultaneously instead of the usual LED multiplexed display that displays only one digit at a time at a very fast rate. The multiplexed LED display will flicker under motion and vibration. A non-multiplexed display, on the other hand, is more pleasant to view under all conditions.

ADHOC Voltaggio Automotive voltage stabilizer


On top of that, as per the company's mission of providing highly reliable and robust devices, all components within the device are rated at 250%-400% tolerance in the case of the Voltaggio. The device is highly efficient, emits no heat at all, uses efficient switching power ICs instead of heat emitting power regulators and consumes an electrical current of less than 85mA. We want to do the exact opposite of what failing industries are doing because we want to succeed. We know that common sense tells us that people don't mind paying a little more for something that actually works and lasts.


Types of Electrical Noise and the Role of the Voltaggio

High frequency, low current spikes/dips - caused by equiment that drain small bursts of current at high frequencies such as the ignition system, fuel injectors, blower speed controllers, etc. These spikes account for the majority of the noise that affects the car's sensors' accuracy and electronic systems. They can also affect spark performance. The Voltaggio eliminates MOST of these spikes by utilizing ultra-low ESR capacitors that can charge and discharge at high-frequencies effectively (up to 100 KHz).     Static spikes - caused by static electricity which accumulates in various parts of the car and transferred unto the electrical system. Normally they are easily absorbed by the metals in the main voltage bus, but the Voltaggio elimates whatever residual that is present by allowing the ultra-low ESR capacitors to take in the static potential.

noise noise

High current, sustained dip - caused by activation of high current equipment like headlamps, compressor swithes, high wattage woofer, etc. The alternator will adjust output to match the consumption, albeit in a delayed manner. The dip persists, usally for about one half of a second. The Voltaggio does NOT reduce spikes such as these. Can only be rectiffied by high capacity condensers (1-5 Farads).     High current, transient dip - caused by activation of high-drain equipment which draws current in short bursts such as automatic transmission solenoids, certain relays, etc. The voltaggio will help reduce but NOT completely eliminate such dips.


The above is a simplified depiction of the types of electrical noise in a car. In an actual car, the various types of spikes/dips overlap each other to form a messy noise pattern comprising of distortions of various frequencies. The use of ultra low ESR capacitor is necessary to effectively absorb these high-frequency noise with odd patterns.

Due to the car battery's high internal impedance and chemistry, it is unable to absorb or compensate quickly enough for these spike/dips although it is able to churn out a very high current. The battery is particularly bad at filtering the first, second and fourth type of spikes in the above diagram. The Voltaggio's role is therefore to help the battery do what it is unable to do, by working in synergy with it.


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