Electrical Engineering

What does an electrical engineering company do?

Most people use electronics every day. VPI Engineering designs electronics for a wide variety of clients. We have experience designing digital and analog electrical systems, imaging systems, battery and power systems, networking systems, antennas, infrared systems, electrical prototypes, RoHS compliant systems, radiological detection system, and sensor based systems.

Electrical Engineering spans a broad spectrum of services. Our engineers have the education and experience to choose the correct components and create electrical designs that are reliable and safe for users.1

Every electronic product requires electrical systems engineering and design to ensure that its electrical components are properly connected and will interact well together. Our goal is to help you create a product or system that fits your customers' needs and performs to your expectations. Your success is our success. 

Engineering Capabilities

Electrical Engineers working together.

Capabilities

Analog to Digital & Digital to Analog Real World Sampling

Electrical systems come in two flavors, digital and analog. Digital systems use incremented inputs and outputs, 1s and 0s to communicate information. Analog systems accept inputs and then output information as they sense it from the outside world.

To understand the difference between digital and analog systems, compare digital and analog clocks. Digital clocks are updated electronically as opposed to analog clocks which use motors and gears to move hands that point to numbers on the clock face.

VPI designs analog to digital, and digital to analog systems, which convert inputs into a format that the system can use.

https://learn.sparkfun.com/tutorials/analog-vs-digital

Low EMI and RFI Design

Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI) refer to the amount of electromagnetic noise that electronics produce. VPI Engineering designs devices with low EMI and RFI.

The FCC and other regulatory authorities require products to meet certain EMI and RFI standards before they can be sold legally. Not only do we design products to meet these regulatory requirements, we also have testing facilities to conduct product testing to Federal Communications Commission (FCC), Industry Canada (IC), and Conformité Européene (CE) standards.

High Voltage System Design

High-Voltage system designs require extra care because the consequences of getting them wrong can damage equipment or be potentially fatal. VPI Engineering has the capability to create designs that are safe and reliable.

 

CCD and CMOS Imagers

Charge-Coupled Device (CCD) and Complementary Metal-Oxide Semiconductor (CMOS) image sensors are used in cameras and for other imaging applications. Normally CCDs cost more and produce better images, but, depending on the application, less expensive CMOS sensors can be used effectively at a reduced price.

http://electronics.howstuffworks.com/cameras-photography/digital/question362.htm

  

Illumination Control

VPI Engineering also designs illumination control for devices that use CMOS and CCD Sensors so that they perform within a consistent environment.

 

Laser Diode Control

AC and DC Power Systems

VPI Engineering designs both alternating current (AC) and direct current (DC) power systems. AC is most commonly used by household items in the US. DC is used to power battery operated devices.

 

Power Optimization

VPI's power optimized designs incorporate power management systems to help them conserve battery life for as long as possible. This means that power is selectively supplied to areas of the system that need power at the time. This design strategy is sometimes called low power consumption design or ultra-low power consumption design.

http://www.ti.com/lit/wp/spry233/spry233.pdf

 

We also design commercial and military grade battery systems, which require rugged designs that will continue to function in extreme conditions. High reliability focused products have low failure rates.

 

Battery Charging/Recharging Circuit Designs

 

Networking Systems

Networked systems can be connected through Ethernet or wirelessly, much like a computer's connection to the internet. VPI Engineering designs networking systems that give the end user a more efficient experience than if each device operated individually. Connected devices can be useful for IoT applications like smart home systems, sprinkler controllers, and security monitoring systems. 

 

VOIP Systems

Voice Over Internet Protocol (VOIP) systems allow users to make phone calls using an internet connection. One of the challenges of creating a successful VOIP system is converting analog signals to internet transferable digital signals.

https://www.voip-info.org/wiki/view/What+is+VOIP

 

One project completed by VPI enabled companies to record multiple calls for quality assurance.

 

Telecom Systems

 

Internal vs External Antenna Design

VPI Engineering works to incorporate the best type antenna for each project's application. Chip antennas can be used in devices with limited range and allow for a sleeker look. External antennas can be used to give devices a longer range, but are a little more unsightly. We can design your device to work with an existing chip or external antenna, or we can design a custom antenna specific to your device.

 
  • LVDS - Low-Voltage Differencial Signaling
  • GTL - Gunning Transceiver Logic
  • HSTL - High-Speed Transceiver Logic
  • SSTL - Stub Series Termination Logic
  • LVPECL - Low-Voltage Positive Emitter-Coupled Logic

Infrared Technology

Infrared (IR) technology senses, and/or transmits infrared radiation. This can be useful for military applications such as surveillance, targeting, and tracking. It's also useful for fire surveillance and security as well as short-range wireless communication and can be used to determine the efficiency of a building’s insulation through temperature sensing and thermal imaging.

IR Technology is used in most TV remote controls.

Why do I need a prototype?

Prototypes are trial runs for your product. They normally have the functionality that your product will have when it is completed, but may lack the refinement and design qualities of the final product. They allow you to test your idea before it goes into full production.

 

We can create breadboard prototypes and other types of proof of concept designs. These can be useful when showing investors and potential clients that the final product will function as promised.

 
  • Breadboard and Proof of Concept Designs
  • Electronics System Prototypes
 

What is RoHS and non RoHS?

The Restriction of Hazardous Substances (RoHS) is a set of European regulations meant to help reduce waste and maintain a healthy environment. VPI’s engineers can design your product so that it meets RoHS requirements. One of the main factors that determine a device's RoHS compliance is whether or not it contains lead.

What is the WEEE?

Waste from Electrical and Electronic Equipment (WEEE) requirements are a subset of RoHS requirements. "WEEE Directive 2002/96/EC mandates the treatment, recovery and recycling of electric and electronic equipment."

If your current product design incorporates lead components, VPI Engineering can help you redesign your product so that it no longer contains lead.

http://www.rohsguide.com/

 

What is logic in digital electronics?

Logic describes the basic functions of electronics. Writing logic for PLDs, CPLDs, and FPGA allows us to program devices that are very fast.

 

PLDs and CPLDs

PLDs are Programmable Logic Devices (PLDs) and CPLDs are Complex Programmable Logic Devices (CPLDs).

What is an FPGA?

Field Programmable Gate Arrays (FPGAs) are like microcontrollers that can be configured to process inputs in a variety of ways and can be programmed to work very quickly. They are not used as frequently as microcontrollers or microprocessors for simple electronics because they are more expensive and use more power, but when they are needed they can be very useful.