Installing and initial testing of Dave’s 3kW home solar power system. With Sunnyboy SMA inverter, 250W LG Mono-X solar panels, and net metering. Forum HERE Podcast: Download
Read More »EEVblog #483 – Microcontroller Voltage Inverter Tutorial
How a diode voltage inverter circuit works. Turns any PWM or clock signal into a low power negative voltage rail. This can be clocked from a microcontroller, existing DC-DC converter, 555 timer etc. Voltage Doubler Video Forum HERE Podcast: Download
Read More »EEVblog #482 – Retro Iskra Multimeter Teardown
What’s inside a 1980 vintage Yugoslavian digital multimeter, the Digimer 10 from Iskra Schematic Photos Forum Podcast: Download
Read More »EEVblog #481 – Mailbag
Blinker hybrid schematic http://a-squaredtec.com/ http://blisterpackaging.com/ http://www.flickr.com/photos/64683169@N00 http://gtronics.net Forum HERE Podcast: Download
Read More »EEVblog #480 – 300MHz Owon SDS Oscilloscope
Dave takes a look at the Owon SDS Series “Smart” oscilloscope. The 300MHz model SDS9302. But apart from bandwidth and sample rate, the same as the SDS8302, SDS8202, SDS8102, SDS7102, and SDS6062. Forum topic HERE Podcast: Download
Read More »EEVblog #479 – Opamp Input Bias Current
Fundamentals Friday All about opamp input bias currents. Dave goes through the theory, and then does some practical measurements and tweaking. Forum HERE Podcast: Download
Read More »EEVblog #478 – Keithley 2015 THD Multimeter Teardown
Teardown Tuesday Inside the Keithley 2015 THD 6.5 digit bench multimeter. Not just a multimeter, it does low noise signal generation and automated audio THD system measurement. Forum Topic HERE Podcast: Download
Read More »EEVblog #477 – Mailbag
Dave opens his mail again. http://windytan.blogspot.com http://tindie.com http://delphijustin.weebly.com http://turtleneckhub.com Smart Tweezers Arduino Workshop Book Podcast: Download
Read More »EEVblog #476 – Opamp Offset Voltage Measurement
Dave investigates an issue with the input offset voltage on the Analog Devices AD8628 zero-drift chopper opamp. The answer will be presented in the next video. Chopper Amplifier video HERE Forum Topic HERE Podcast: Download
Read More »EEVblog #475 – GW Instek GDS-2000A Oscilloscope Teardown
Inside the GW Instek GDS-2000A series oscilloscope. Datasheet links: http://www.ti.com/lit/gpn/adc08d500 http://www.ti.com/lit/gpn/lmh6518 http://www.analog.com/static/imported-files/data_sheets/ADCMP567.pdf http://www.analog.com/static/imported-files/data_sheets/AD8370.pdf http://www.analog.com/static/imported-files/data_sheets/AD8009.pdf http://www.analog.com/static/imported-files/data_sheets/AD8000.pdf http://www.analog.com/static/imported-files/data_sheets/AD9834.pdf http://pdf1.alldatasheet.com/datasheet-pdf/view/151684/GSI/GS88036BGT-333I.html Forum Topic HERE Podcast: Download
Read More »EEVblog #474 – GW Instek GDS-2000A Series Oscilloscope Unboxing & First Impression
Over an hour of Dave unboxing the new GW Instek GDS-2000A series VPO oscilloscope, and first impressions on trying to use it. Some comparison to the Rigol DS2000 series are also made. This is a not a proper considered review, it’s just a hack’n’slash at playing around with it out …
Read More »EEVBlog #473 – Microcontroller Voltage Doubler
Dave explains the Dickson Doubler building block circuit. a.k.a diode charge pump. Use a spare microcontroller pin, some diodes, and capacitors to create a useful voltage doubler or voltage multiplier. Podcast: Download
Read More »EEVblog #472 – JBC CD-2BB Soldering Iron Teardown
What’s inside the JBC CD-2BB soldering station. http://bit.ly/180GwAP http://www.mektronics.com.au/ Forum Topic HERE Podcast: Download
Read More »EEVblog #471 – Overload Detector Circuit Design
Fundamentals Friday Dave takes you through designing a signal overload detector circuit from scratch and then builds it up on the breadboard. Window comparators, schmitt inverters, capacitor charging, pulse stretching, common mode input range, tongue angle tweaking, it’s all here. Podcast: Download
Read More »EEVblog #470 – Agilent N9344C 20GHz Spectrum Analyser Teardown
What’s inside an $18K 20GHz handheld spectrum analyser? Rigol DSA815 teardown Tektronix MDO4000 teardown Podcast: Download
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