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Kerry D. Wong

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Year: 2016

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  • 2016

Hacking Your Mouse for Rapid Firing

December 24, 2016 kwong3 Comments on Hacking Your Mouse for Rapid Firing

In this blog post, I will show you a simple hardware hack to make your mouse capable of rapid firing […]

Electronics 555, Continuous Click, Hack, Mod, Mouse, Rapid Firing

Teardown of a Vivitar Rapid Battery Charger

December 10, 2016December 10, 2016 kwongLeave a Comment on Teardown of a Vivitar Rapid Battery Charger

I just picked up a charger along with a couple of NP-FW50 spare batteries for my new Sony Alpha A6000 […]

Electronics, Teardowns Battery Charger, MC34063A, NP-FW50, Sony Alpha A6000, VIV-QCB-104, Vivitar

Bertan/Spellman 225-20R HV Power Supply Teardown

November 20, 2016 kwong12 Comments on Bertan/Spellman 225-20R HV Power Supply Teardown

I just picked up another high voltage power supply, this time it is a working Bertan/Spellman 225-20R 20kV one. Unlike […]

Electronics, Teardowns 225-20R, AD584, AD586, AD7546, Bertan, Experiment, High Voltage, HV, IC7104, ICL8068, P8085AH, Power Supply, Spellman, Teardown

Bertan/Spellman 205A-05R High Voltage Power Supply Teardown

November 13, 2016December 10, 2016 kwong5 Comments on Bertan/Spellman 205A-05R High Voltage Power Supply Teardown

I got a non-working Bertan 205A-05R 5kV high voltage power supply and did an attempted repair video a while ago […]

Electronics, Teardowns 205A-05R, Bertan, CA3028, Elapsed Time Indicator, ETI, High Voltage, HV, Spellman

How does Vacuum Cleaner Clean/Dirty Indicator Work?

October 29, 2016 kwong1 Comment on How does Vacuum Cleaner Clean/Dirty Indicator Work?

I have always wondered how the clean/dirty indicator on my Hoover vacuum cleaner works. So when it was time to […]

Electronics Clean/Dirty Indicator, Comparator, Op Amp, Vacuum Cleaner

Linear MOSFET and Its Use in Electronic Load – Update

October 15, 2016October 15, 2016 kwongLeave a Comment on Linear MOSFET and Its Use in Electronic Load – Update

In my previous post, I discussed why it is beneficial to use linear MOSFETs in electronic load and performed a […]

Electronics Electronic Load, FBSOA, IXTK90N25L2, IXYS, Linear MOSFET, SOA

Linear MOSFET and Its Use in Electronic Load

October 8, 2016January 15, 2017 kwong19 Comments on Linear MOSFET and Its Use in Electronic Load

Power MOSFETs are widely used in switch mode applications such as pulse width modulated electrical motor controllers and switching mode […]

Electronics Current Focusing, Electronic Load, FBSOA, Hot Spotting, IRFP150N, IXTK90N25L2, IXYS, Linear MOSFET, LT1636, SOA, ZTC

A Dual Sensor Fan Controller Build

October 1, 2016 kwong2 Comments on A Dual Sensor Fan Controller Build

A while back, I added a fan controller to my Topward 6603A power supply. Later on, when I bought a […]

Electronics Fan Controller, Seeed Fusion PCB

Teardown of a Static Fieldmeter

September 6, 2016 kwongLeave a Comment on Teardown of a Static Fieldmeter

Static fieldmeters (or electrostatic fieldmeters) are typically used for non-contact measurements of the electrostatic field strength (usually in kV) of […]

Electronics 42721, Electrostatic, ESD Systems, ICL7621, LMC6064, LTC1044, PIC16C54, Plastic Systems, Static Fieldmeter

A Super Bright Light Source

August 20, 2016 kwongLeave a Comment on A Super Bright Light Source

I did a teardown of a SMART UF-55 DLP Projector a while ago, and later I showed how to hack […]

Electronics Ballast, OSRAM, P-VIP, Projector, SMART UF-55

Adding Strain Relief to an Existing cable

August 13, 2016 kwong1 Comment on Adding Strain Relief to an Existing cable

Not all cables have proper strain relief built to the connector ends. This is particularity true for some of the […]

Electronics, Miscellaneous Heat Shrink, Strain Relief

Epson PowerLite 84 Multimedia Projector Teardown and Repair

July 16, 2016 kwong8 Comments on Epson PowerLite 84 Multimedia Projector Teardown and Repair

I recently was given a broken Epson PowerLite 84 projector. The projector would not turn on when plugged in and […]

Electronics, Teardowns 3LCD, Epson, Multimedia, Pixelworks, Power Supply, PowerLite, Projector, Repair, SoC, Teardown

Wavetek 395 Arbitrary Waveform Generator Teardown

June 26, 2016 kwong15 Comments on Wavetek 395 Arbitrary Waveform Generator Teardown

I picked up a Wavetek 395 arbitrary waveform generator on eBay a few weeks ago. Wavetek 395 is a single […]

Electronics, Teardowns AD9712, Arbitrary Waveform Generator, AWG, DDS, ECL, Wavetek 395

Hacking an OSRAM P-VIP Projector Lamp Driver Board

June 5, 2016 kwong27 Comments on Hacking an OSRAM P-VIP Projector Lamp Driver Board

After taking the SMART UF-55 projector apart, I decided to take a look at the salvaged circuit boards to see […]

Electronics Ballast, OSRAM, P-VIP, Projector, UART

Teardown of a SMART UF-55 Projector

May 22, 2016May 22, 2016 kwong2 Comments on Teardown of a SMART UF-55 Projector

My workplace was throwing away an old SMART UF-55 DLP projector. The projector had many stuck mirrors and the lamp […]

Electronics, Teardowns AD9983A, CPLD, FPGA, PIC24FJ64, RTL8201CP, TVP5147M1

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Older posts

Categories

  • AVR/Arduino (98)
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  • Electronics (216)
  • Linux/BSD (34)
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Tools & Libraries

  • MCP2210 Library
  • BCalc — A Hex/Bin/Dec Converter And Calculator

Most Popular Posts

  • A Sensitive DIY Ultrasonic Range Sensor (286)
  • Building a Constant Current/Constant Power Electronic Load (237)
  • AVR LC Meter With Frequency Measurement (210)
  • A Digitally Controlled Dual Tracking Power Supply -- II (88)
  • AD7705/AD7706 Library Revisited (87)
  • Hacking DTM0660L Based Multimeters (72)
  • A Self-Balancing Robot – III (62)
  • Reverse Engineering the Syma S107G IR Protocol (56)
  • Arduino Development Using NetBeans (51)
  • Dual Purpose Spot Welder With Pulse Duration Control (49)

Archives

My Favorite Sites

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Recent Comments

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  • Robin E Midgett on HP 8620C Sweep Generator Repaired
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