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System Modeling Blog

7 Aug, 2012

Tsunami Remnants

Posted by Mike Jensen

Mike Jensen I’m back at my keyboard after a brief, but enjoyable, vacation. Like last year, I trekked with my family to the Oregon Coast. Yes, we enjoy time at the beach, though this time we travelled with extended family so we spent a bit more time driving around site seeing than playing in the tide. In seven days I personally logged some 1200 miles in the driver’s seat. Luckily I don’t mind … Read More

Modeling

24 Jul, 2012

A New Look at Device Modeling

Posted by Mike Jensen

Mike Jensen Lately I’ve been working with customers interested in using SystemVision to simulate either a real production design, or some sort of evaluation test circuit. To a customer, however, each ran into the “don’t have a simulation model” challenge for one or more devices in their system. Despite SystemVision’s large VHDL-AMS and SPICE model libraries, we didn’t have a … Read More

Mixed-Signal, analog modeling

12 Jul, 2012

SystemVision 5.9

Posted by Mike Jensen

Mike Jensen It’s software release time in the SystemVision® offices, and I’m happy to announce that SystemVision 5.9 is ready for immediate download. Here are some of the release highlights: Design entry: User interface (UI) updates including more flexible user customization; Support for multi-sheet schematics and multi-view symbols; Improved schematic symbol generation; Easier mapping between simulation … Read More

6 Jun, 2012

Veyron Physics

Posted by Mike Jensen

Mike Jensen The Bugatti Veyron occupies a unique spot among dealer showroom trophy cars: the fastest production automobile in the world. With a top speed of 254 miles per hour (406 kilometers per hour), the Veyron sits atop the supercar heap, chewing up asphalt at a brisk pace just under 4.3 miles per minute (over 6.7 kilometers per minute). If a Veyron graced my humble two-car garage, I could theoretically travel … Read More

IEEE 1076.1, physics

3 May, 2012

Rooster Tail Engineering

Posted by Mike Jensen

Mike Jensen It is not uncommon for the extraordinary to quickly become the ordinary. Consider cell phones, tablet computers (or just computers in general), hybrid cars, heart transplants, drone aircraft, digital cameras, Amazon.com, Facebook…the list is long and varied. Most of these are considered “ordinary” by today’s standards, but each was little more than an idea in someone’s … Read More

physics, engineering

25 Apr, 2012

Automotive IESF 2012

Posted by Mike Jensen

Mike Jensen Believe it or not, summer is fast approaching. My daughter is looking forward to the summer break from school. My sons, being a bit older and each completing a couple of semesters of university studies, are facing a summer busy with research or employment. When they yearn for leisure days of summers past, I usually respond with “welcome to adulthood”. The SystemVision crew is preparing for … Read More

IESF, Mechatronics

10 Apr, 2012

Teaching and Learning CAN Bus

Posted by Mike Jensen

Mike Jensen

One of the great things about working with SystemVision is its ability to model and analyze a variety of systems. One day I might be working with an automotive company discussing the electro-hydraulic performance of an automobile braking system. The next day I could easily be talking with an aerospace company discussing power distribution for the latest generation of a fighter or commercial aircraft.

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CAN bus, Vehicle Networking

30 Mar, 2012

Analog Modeling - Part 6

Posted by Mike Jensen

Mike Jensen In Part 5 of this series we used the mathematical descriptions of the thermal and electrical properties of an incandescent lamp to create the architecture of a VHDL-AMS-based simulation model. Now it’s time to finish the model, and this blog series, by creating a VHDL-AMS entity for the lamp model. As I mentioned in Part 5, the VHDL-AMS entity defines how a model connects to other elements in a system, … Read More

HDL, Modeling, analog modeling

23 Mar, 2012

Analog Modeling - Part 5

Posted by Mike Jensen

Mike Jensen If you’ve followed this Analog Modeling series, you know we’ve been talking about a general process for HDL-based modeling of analog behavior. If you’re new to the discussion, or simply want to review what we’ve talked about so far, check these links: Part 1, Part 2, Part 3, Part 4. In my last post we developed a set of equations describing the relationship between the thermal … Read More

HDL, analog modeling, Modeling

2 Mar, 2012

Analog Modeling - Part 4

Posted by Mike Jensen

Mike Jensen It’s time to dig a little deeper into the incandescent lamp behavior I introduced in Part 3 of this blog series. My goal is to select a set of equations that best describe the elements of the lamp’s behavior that I want to quantify during simulation. Recall my comment in Part 3 that a lamp has several characteristics worth analyzing including electrical properties, thermal properties, aging … Read More

vhdl-ams training, HDL, analog modeling, Modeling

10 Feb, 2012

Analog Modeling - Part 3

Posted by Mike Jensen

Mike Jensen Welcome to the third installment in my Analog Modeling blog series. In Part 1 I wrote about why equations are important for simulation. In Part 2 I suggested a process flow for turning device equations into a simulation model, and introduced the basic structure of a VHDL-AMS model. Now it’s time to begin the model definition process. As I outlined in Part 2, the first step is deciding what you want … Read More

HDL, analog modeling, Modeling

2 Feb, 2012

Analog Modeling - Part 2

Posted by Mike Jensen

Mike Jensen In Analog Modeling – Part 1 I reviewed the importance of equation selection in the analog modeling process. In a nutshell, the first step in getting good simulation results is choosing equations that best describe the behavior or device you want to analyze. Your analog equation set could be as simple as a single transfer function describing the relationship between the inputs and outputs of a … Read More

HDL, Modeling, analog modeling

25 Jan, 2012

Analog Modeling - Part 1

Posted by Mike Jensen

Mike Jensen I recently spent some time rummaging around my basement. I suppose my basement is not unlike many others — it’s kind of my family’s catch-all storage place for items too big to fit in a closet. Besides housing my HVAC and water heating systems, my basement is home to a variety of holiday decorations, lots of canned, bottled, and bulk food items, a small collection of mismatched folding tables … Read More

Modeling, analog modeling

13 Jan, 2012

Connecting Tools and Processes

Posted by Mike Jensen

Mike Jensen Searching the Internet is like having a giant, international reference library at your fingertips. If you know what you’re looking for and have a reasonable idea of where to look, with a little patience you can usual find some pretty interesting material related to your search topic – okay, you can also find a bunch of stuff you aren’t looking for, but as I often say, “That’s a topic for a different … Read More

Mechatronics, Hardware/software co-design, SystemVision SVX

10 Dec, 2011

Use vs. Experience

Posted by Mike Jensen

Mike Jensen

Whether your company creates airplanes, cars, widgets, or software, product planning is an essential part of the development process. And if your group is like mine, product planning meetings are seldom boring. I am privileged to work with some pretty sharp folks who are very capable engineers, and very passionate about what they do. Our planning discussions are always interesting, and often animated.

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engineering

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