Difference between revisions of "QAKAMP"
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| + | [[Biomechatronics_Documentation | Back to BM]] | ||
| + | [[Ankle-0406 | Ankle Tech notes]] | ||
| + | [[GIMUAMP | Greddy IMU amplifer (GIMUAMP)]] | ||
| + | [[AKBRK | Ankle MM32 breakout (AKBRK)]] | ||
QAKAMP contains four bridge amplifiers with 2+ pole LP filters and differential output drivers, a high current precision voltage reference, power supply conditioning. The front end uses instrumentation amplifier with 80dB CMR extending to 100KHz. | QAKAMP contains four bridge amplifiers with 2+ pole LP filters and differential output drivers, a high current precision voltage reference, power supply conditioning. The front end uses instrumentation amplifier with 80dB CMR extending to 100KHz. | ||
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| + | =Rev A= | ||
| + | *LM358 and OP27 opamp power wired backwards - corrected in Rev B schematic | ||
| + | *V- LED wired backwards in SCH, corrected in Rev B sch | ||
| + | *L.COM at REF- is open circuit - connected to COM | ||
| + | |||
| + | ==SN1 : assembly notes== | ||
| + | *Vref built with TL1431, Rb=2.49, Ra=4.7k -> Vref = 7.2v - regulation @ +-10V | ||
| + | *changed Ra to 2.49k, Vref = 4.99V, regulation @ +6, -7V | ||
| + | *RR1,RR4 are 4.7 and 10k. Wonder if smaller values might start regulation sooner. | ||
Latest revision as of 22:40, 1 June 2006
Back to BM Ankle Tech notes Greddy IMU amplifer (GIMUAMP) Ankle MM32 breakout (AKBRK)
QAKAMP contains four bridge amplifiers with 2+ pole LP filters and differential output drivers, a high current precision voltage reference, power supply conditioning. The front end uses instrumentation amplifier with 80dB CMR extending to 100KHz.
Rev A
- LM358 and OP27 opamp power wired backwards - corrected in Rev B schematic
- V- LED wired backwards in SCH, corrected in Rev B sch
- L.COM at REF- is open circuit - connected to COM
SN1 : assembly notes
- Vref built with TL1431, Rb=2.49, Ra=4.7k -> Vref = 7.2v - regulation @ +-10V
- changed Ra to 2.49k, Vref = 4.99V, regulation @ +6, -7V
- RR1,RR4 are 4.7 and 10k. Wonder if smaller values might start regulation sooner.
