Current transformer H11-3 needs to be made by yourself. It can choose transformer core which is not less than 2W, and the secondary should be wound fir...
Capacitor between gate and cathode provides shunt path at higher frequencies to prevent firing of silicon controlled switch by r-f interference. Values...
When circuit shown is used to transfer signal from one piece of equipment to another, desired signal passes with very little degradation. Component val...
The picture 1 is a DC meter protection amplification circuit and is made up of LM10 and others. It is a kind of DC meter protection amplification circu...
The application of this set is shown in the diagram. As the voltage of transmission network in the countryside is not very stable now, you can homemade...
To safeguard portable, emergency power repeaters from reverse or excessive voltage, D1 prevents incorrect polarity damage, and zener voltage determines...
Why to have The speaker protection circuit? How do the speaker protection circuit can prevent the speakers? This may be questions understand of somebod...
Used with digital logic to prevent generation of false logic signals when power supply is turned on or turned off, FETs sense +15 V and -15 V supplies ...
The application circuit shown in the picture below with output voltage higher thanreferenced voltage is composed of the W723 multi-port adjustable posi...
When 51 is pressed,the AC contactor KM is conducted to pull in.Three pairs of normally open contacts are connected.The electric motor M works.The AC vo...
The circuit shown in Figure uses negative sequence voltage generated by unbalanced three-phase power for phase-failure protection. When the three-phase...
This article describes the MOSFETs Raise Protection Levels for Inductive Loads (ZXMS6006DT8). The principle is very simple, very practical. The circuit...
Circuit ignores desired peak pulse currents by sensing their coincidence with drive pulse, but fires trigger thyratton V6 and V7 in absence of drive pu...
The circuit's working principle is shown below.This crops automatical frost protection control circuit is made up by electrical-contact mercury thermom...
Guys, we should be glad and thanks to the people, especially those soldiers that have been scarified their themselves, being away from the loved ones a...
The stabilized voltage circuit with overcurrent protection function is shown as above.Welcome to download the circuit and this information is from www....
This circuit monitors the power-line (ac) voltage. When a power failure occurs, on restoration of power, the circuit adds a five-minute delay before en...
View Full Size Image View Original Datasheet The LT6109 is a complete high side current sense device that incorporates a precision current sense amplif...
The circuit is composed of DC circuit, delay circuit, overvoltage and undervoltage protection circuit etc. ICl integrated circuit LM7812 outputs +12 V ...
This circuit responds quickly enough to prevent damage from most overloads. C 1 `s input is connected to the output of the LT1088 servo circuit. If the...
The hearing protector is a peak audio detection protection circuit, when the amplifiers output reach a set level, it banned through its chip disable th...
Electronic Fuse for DC Short Circuit Protection This is an electronic fuse that protects the load against short circuit. Relays must be choosen with a ...
Loudspeaker Protection and Muting Many hi-fi amplifiers and professional power amps (and loudspeaker systems) provide some of protection, either to pro...
When the main power is normal, the signal chip machine is powered by VCC5V, at the moment, the VCC5V power supply is charging the battery through D1 an...
R1 and Q1 form current detector for bias supply. At normal current levels, voltage drop is very small and Q2 is reverse-biased. When current reaches 40...
This is an electronic fuse. It protects your circuit from shorts. Relays should be chosen depending on the input voltage. [Link] Reprinted Url Of This ...
Description The circuit protection output of power amplifiers and loudspeakers, dispose certain interesting elements, as the isolation of loudspeakers ...
The circuit is shown in Figure 13-6, the circuit is based on 555 circuit to form power delay protection circuit. The connection of C1 makes pin 6 be in...
When lightning occurs and generates the overvoltage, the over-voltage current can pass transient voltage between lines and ground to suppress diodes VD...
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