Templetronics

Here are the projects that Templetronics expertise has successfully designed and our expertise has contributed to in the past with regard to mixed signal designs.

Flight Control System
Commercial Communications System
Embedded Power controller system
Data Acquisition & Frequency Analysis system
Brushed DC-Motor Controller Board
Brushless DC Actuator Control System
CD/DVD ROM Focus and Track Servo Signal Conditioning



Please see the Testimonials' page regarding our input.

Flight Control System
Project: Embedded processing, power control and data acquisition
Description:
Mixed technology embedded system with extensive analogue circuitry for data acquisition and power control: ADCs; DACs; analogue voltage and instrumentation amplifiers; Data acquisition/signal conditioning circuits; MOSFET switches; Power drive circuitry and inrush current/soft start control; SMPSU. The digital side contained: Freescale MCU; MicroSemi ProASIC3e and IGLOO2 FPGAs; assorted LVT glue logic (buffers, tri-state latches etc); memory and POL converters. All boards communicated with LVDS buffers where functions were across-board.

We designed the entire platform, partitioning off functions and technologies for best system performance.

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Commercial Communications System
Project: Commercial Communications System
Description:
Mixed signal embedded system with associated analogue circuitry including: high speed clock distribution, low frequency and low skew signal conditioning, on-board switched mode power supply design, fan controllers, power switches. The digital side contained: microprocessors, DDR3 memory, SRAM FPGAs, SRAM memory, Flash memory and glue logic.
We were asked to provide a complete design solution to meet the system requirements, and we delivered once again.

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Embedded Power controller system
Project: Embedded power controller system
Description:
Mixed technology embedded system with the following analogue circuitry: ADCs; DACs analogue comparators and amplifiers; BJT switches; Data acquisition/signal conditioning circuits; Power drive circuitry; SMPSU (custom design). The digital side contained: Intel 80C186 processor; Actel ACT anti-fuse FPGAs; assorted HCT glue logic (buffers, tri-state latches etc); memory.
We were asked to redesign some key system components and we also successfully consulted/problem solved on a custom power supply design failure that was causing a high % production yield failure:

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Data Acquisition & Frequency Analysis system
Project: Data acquisition & frequency analysis system
Description:
This project involved a single PCB containing both digital and analogue circuits. This was part of a multi-card CPU based data acquisition and monitoring system.We were responsible for the hardware implementation of the system, as well as the design of the analogue signal conditioning circuitry to a 14bit ADC. The system performed data acquisition of measured quantities ranging from LVDT voltages to charge signals from piezoelectric accelerometers. An FFT was performed in the digital domain, split between an FPGA and a TI TMS320 DSP. The results were sent to the CPU card via a high speed serial link (100Mbps) in a time division multiplexed form.

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Brushed DC-Motor Controller Board
Project: Brushed DC-motor controller board
Description:
Highly density digital control SoC for a brushed DC motor system containing the above technologies & circuits and targeted to a very unusual mechanical PCB shape. The design solution to the system requirements was a two-board approach: one board with the all the supply, interface and amplifier circuits, and the digital control; the second, with the power MOSFET circuitry. Both boards interfaced together and fitted back-to-back in the system. This system was a redesign, and had an 8x faster system clock but exhibited less emissions than the original.

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Brushless DC Actuator Control System
Project: Brushless DC actuator control system
Description:
This design, a digitally controlled power switch, was designed as a single board solution containing all power supply, control logic, level shifting, switching and power circuitry on one card. This board was 3 months behind on project before our expertise was called upon, and became the first design into production, 2 months ahead of the rest. Until a customer specification change, it remained the only board to not undergo rework or modification. This design had to account for varying power supply requirements to interface to the end-user equipment, of which little was known due to the nature of the end-use equipment. This design presented a very challenging linear problem to contain a very complex function with all associated circuitry on one-board.

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CD/DVD ROM Focus and Track Servo Signal Conditioning
Project: CD/DVD ROM Focus and track servo signal conditioning
Description:
High speed analogue signal conditioning circuit design using video amplifiers to amplify RF focus and tracking servo signals ready to be digitised by a Flash ADC to DSP card. Problems overcome included linear frequency/phase response of circuits over wanted signal range, complex AC/DC amplification to minimise circuit solution. Level shifting of amplified signals to desired input voltage window of ADC.


For more information, on the above projects you may also like to refer to the analogue, ASIC, FPGA & SoC, the Embedded Systems the DSP projects, and EMC pages.

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