What are the main differences between electromagnetic and capacitive voltage transformers?

On 2019-05-27 13:58:00  in Transformer

What are the main differences between electromagnetic and capacitive voltage transformers?

This article describes the main differences between electromagnetic and capacitive voltage transformers ...

How to detect the fixed resistors by multimeter?

On 2019-06-14 16:19:00  in Resistors

How to detect the  fixed resistors by multimeter?

This article describes the method of detecting fixed resistors. ...

What are the precautions and detection methods for using variable resistors?

On 2018-12-15 11:46:39  in Resistors

What are the precautions and detection methods for using variable resistors?

This article describes the precautions and detection methods for using variable resistors ...

What is the working principle of intelligent colored lights controller?

On 2019-01-28 15:21:12  in Technology

What is the working principle of intelligent colored lights controller?

This article writes about the working principle of intelligent colored lights controller ...

How to measure 0 ohm resistor?

On 2019-06-05 18:15:37  in Resistors

How to measure 0 ohm resistor?

This article describes the measurement of 0 ohm resistor ...

the detection of the resistor

On 2018-10-31 10:55:57  in Memory

the detection of the resistor

Will be two pen ( regardless of the positive and negative ) are connected with the two ends of the resistor can be connected to measure the actual resistance value ( in order to improve the measurement accuracy ...

What is the definition and major categories of low-voltage electrical appliances?

On 2019-05-23 11:55:08  in Knownlege

What is the definition and major categories of low-voltage electrical appliances?

This article briefly introduces the definition and major categories of low-voltage electrical appliances ...

How to solve the interference problem in the motor controller EMC test process?

On 2019-08-12 10:13:51  in Technology

How to solve the interference problem in the motor controller EMC test process?

This article describes the characteristics of the motor controller. ...

What are the classifications of led control cards?

On 2019-07-09 14:15:55  in Photoelectric

What are the classifications of led control cards?

This article briefly introduces the classifications of led control cards ...

How to detect the and Photo resistor

On 2019-07-03 10:59:56  in Resistors

How to detect the and Photo resistor

​This article writes about the method of detecting varistor and Photo resistor ...

What are the characteristics and main parameters of Humidity sensitive resistor?

On 2019-01-09 15:32:22  in Resistors

What are the characteristics and main parameters of Humidity sensitive resistor?

This article writes about the characteristics and main parameters of Humidity sensitive resistor ...

A method of detecting gas-sensitive resistors by using pointer multimeter current shields.

On 2019-07-05 16:20:45  in Resistors

A method of detecting gas-sensitive resistors by using pointer multimeter current shields.

This article describes a method of detecting gas-sensitive resistors by using pointer multimeter current shields. ...

Photosensitive resistor and photosensitive transistor

On 2018-12-29 15:34:08  in Photoelectric

Photosensitive resistor and photosensitive transistor

This article describes the photosensitive resistor and photosensitive transistor ...

Debug ST Stellar car controller

On 2019-05-09 14:21:01  in Knownlege

Debug ST Stellar car controller

This article describes the debug ST Stellar car controller ...

What should be pay attention when installing a resistor on circuit board?

On 2019-01-17 16:22:52  in Resistors

What should be pay attention when installing a resistor on circuit board?

This article describes what should be pay attention when installing a resistor on circuit board ...

What is the high voltage power transformer in the microwave oven and how to detect it?

On 2018-12-25 15:01:36  in Transformer

What is the high voltage power transformer in the microwave oven and how to detect it?

This article introduces the high voltage power transformer in the microwave oven and how to detect it ...

How to repair the mechanical multimeter AC voltage and current mode fault?

On 2019-01-28 13:44:30  in Technology

How to repair the mechanical multimeter AC voltage and current mode fault?

This article briefly introduces how to repair the mechanical multimeter AC voltage and current mode fault. ...

​What is a transient voltage suppressor diode ( TVS )?

On 2018-10-26 16:57:28  in Relays

​What is a transient voltage suppressor diode ( TVS )?

Transient voltage suppressor diode is a new type of overvoltage safety protection device. The utility model has the advantages of small size ...

Discrimination on the pseudo-concept of "reverse earth resistor value and modification of multimeter pens

On 2019-04-16 11:29:12  in Knownlege

Discrimination on the pseudo-concept of "reverse earth resistor value and modification of multimeter pens

This article briefly introduces the discrimination on the pseudo-concept of "reverse earth resistor value” and modification of multimeter pens ...

DC power supply voltage regulator circuit

On 2019-01-05 11:45:23  in Knownlege

DC power supply voltage regulator circuit

This article writes about the DC power supply voltage regulator circuit ...

Gather voltage with ADC of STC microcontroller

On 2023-03-15 11:51:30  in Filter

Gather voltage with ADC of STC microcontroller

This article explains how to measure voltage using the STC ADC, with a focus on understanding and configuring the appropriate settings and filters. ...

How to reduce errors in detecting AC voltages with using a pointer multimeter?

On 2019-02-12 17:11:15  in Knownlege

How to reduce errors in detecting AC voltages with using a pointer multimeter?

This article briefly introduces the methods for reducing errors in detecting AC voltages. ...

Control power,power supply and chassis power supply

On 2018-12-11 11:23:56  in Knownlege

Control power,power supply and chassis power supply

This article writes about the different roles of control power,power supply and chassis power supply ...

Photosensitive resistor

On 2018-10-31 11:15:12  in Resistors

Photosensitive resistor

Photoresistor is a device made of semiconductor photoelectric effect principle.When the semiconductor is exposed to light ...

What about the iW220l and iW2202 digital controllers based on pulse train patent technology?

On 2021-07-05 11:05:01  in Technology

What about the iW220l and iW2202 digital controllers based on pulse train patent technology?

This article describes the characteristics of the controllers. ...

Smart Motor Driver IC Without Current Sense Resistor

On 2023-03-10 14:09:21  in IC Chips

Smart Motor Driver IC Without Current Sense Resistor

The SMD IC is a great solution for motor control applications due to its compact size and low power consumption, as well as its ability to add precise current sensing without a current sense resistor. ...

Operational Amplifier Bias Resistor Calculation

On 2023-03-09 12:08:28  in Resistors

Operational Amplifier Bias Resistor Calculation

Calculating bias resistor for operational amplifiers involves determining input signal, desired gain and input impedance to get the most out of op amp circuit. ...

12V multiple output DC-DC voltage conversion module

On 2023-03-21 18:21:17  in IC Chips

12V multiple output DC-DC voltage conversion module

Multi-output DC-DC voltage converter modules convert one DC voltage into several different DC output voltages for powering multiple systems. They are found in many applications and offer over-current and over-temperature protection. ...

What is a humidity sensitive resistor?

On 2018-12-25 10:55:13  in Resistors

What is a humidity sensitive resistor?

This article describes about the characteristics and detection of the humidity sensitive resistor ...

How to detect the quality of fuse resistor and thermistor by pointer multimeter?

On 2019-05-31 14:16:46  in Resistors

How to detect the quality of fuse resistor and thermistor by pointer multimeter?

This article aims to describe some methods for detecting the quality of a fuse resistor and thermistor by a pointer multimeter. ...

What are the applications of door magnetic sensors in access control systems?

On 2021-01-23 11:02:53  in Sensor

What are the applications of door magnetic sensors in access control systems?

This article introduces the application of door magnetic sensors in access control systems. ...

Autotransformer and voltage regulating transformer

On 2018-08-28 17:33:17  in Relays

Autotransformer and voltage regulating transformer

The common characteristic of transformer is that the DC circuit on both sides is completely separated, and the energy transfer on both sides is coupled by magnetic field. ...

How to design the following voltage circuit of the op amp?

On 2020-12-14 11:12:53  in IC Chips

How to design the following voltage circuit of the op amp?

This article describes the characteristics of the voltage circuit. ...

Measurement and control FPGA

On 2019-06-05 17:58:04  in IC Chips

Measurement and control FPGA

This article describes measurement and control FPGA ...

How to make an water tank water level automatic controller production?

On 2019-01-23 17:18:01  in Technology

How to make an water tank water level automatic controller production?

The article explores how to make an water tank water level automatic controller production ...

How to detect the light-controlled thyristor?

On 2018-10-29 14:48:43  in Generally electronic semiconductor

How to detect the light-controlled thyristor?

Whether it is two feet or three feet of the light control thyristor,detection,first of all will be subject to the light window with black paper stick tape cover ...

Which industries are programmable logic controllers widely used in?

On 2023-03-16 11:24:18  in Filter

Which industries are programmable logic controllers widely used in?

PLCs are industrial computer controllers used to automate machinery and equipment in a variety of industries, providing cost effectiveness and flexibility. ...

Special points and working principles of Wireless remote Control doorbell

On 2018-12-08 11:05:47  in Knownlege

Special points and working principles of Wireless remote Control doorbell

This article writes about special points and working principles of Wireless remote Control doorbell ...

Bidirectional thyristor controlled contactor

On 2018-08-23 11:15:03  in Sensor

Bidirectional thyristor controlled contactor

The bidirectional thyristor is made of N-P N-P N five layer semiconducting material, and also has three electrodes. ...

What is the working principle of water tank water level automatic controller ?

On 2019-01-23 17:14:25  in Knownlege

What is the working principle of water tank water level automatic controller ?

This article writes about the working principle of water tank water level automatic controller ...