This is a Test arrangement for Leakage Testing of Diodes on Reverse Bias. The leakage current indicates the ability of the diode to withstand higher voltages. An AutoTransformer or Variac can be used to vary the test voltage. Even Plastic capacitors can be tested for leakage this way.
Safety Precautions -
Use a Isolation 1:1 transformer for [...]
Archive of entries posted on December 2008
Diode Reverse Bias Leakage Tester
Voltage Doublers and Multipliers
Voltage multipliers are used to obtain low current high voltage, from an existing AC Source. Step up transformers can be used, but the insulation problems and care that has to be taken for HV above 1kV, make it difficult. After SMPS technologies and Ferrites were developed, HV for CRTs was generated by blocking oscillators and [...]
Single Set Point Temperature Controller
This is a generic or standard controller for any type of process. Shown here is a temperature controller.
The STC1000 could be used for Ovens or furnaces, liquid baths, heating or environment chambers. It has a single analog input and an analog or relay output.
Analog inputs could be like 4-20 mA, thermocouple or RTD. Analog outputs [...]
Dual Polarity Analog Output Op-Amps
When you have to buffer and invert the polarity of mV input levels. This is the circuit you can use, as OP07 has uV offset. R9 and R10 can be 100K 1% MFR or better. Use a symmetrical dual supply.
OP07: Ultralow Offset Voltage Operational Amplifier
