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This section provides an overview for voltage detectors as well as their applications and principles. Also, please take a look at the list of 0 voltage detector manufacturers and their company rankings.
Table of Contents
A voltage detector is an electronic device used to detect specific voltage levels.
It monitors whether the power supply voltage is within a specified range, ensuring stable operation and proper control.
Voltage detectors are crucial in monitoring and controlling power supply stability, ensuring system reliability and safety.
They monitor supply voltage and generate a reset signal at the proper voltage level, especially during power-on, allowing microcontrollers or microprocessors to initialize successfully and start from a reset state.
Integrated into power supply units, voltage detectors detect power supply voltage abnormalities and control the circuit to maintain stable power.
In battery management systems, voltage detectors monitor battery voltage, detecting overvoltage or undervoltage during charging or discharging, aiding in stable battery operation.
They are also employed in system fail-safe functions, safely shutting down systems or activating protective functions upon detecting power failures or unstable voltages.
Voltage detectors contain a circuit that detects voltage levels at the input terminals. Their typical configuration and operating principle include:
They require a stable, accurate reference voltage for comparison with the input voltage, either produced internally or supplied externally.
Comparators within voltage detectors compare the input voltage with the reference voltage, outputting the result.
They set a threshold voltage as the reference. The comparator then determines if the input voltage is above or below this threshold, making a stable threshold voltage crucial.
Voltage detectors output a digital signal indicating whether the input voltage is above or below the threshold, which is crucial for monitoring and controlling power supply stability.
Various types of voltage detectors exist, each with specific applications:
Fixed threshold voltage detectors are used for power supply monitoring and reset signal generation.
Variable-type detectors allow users to adjust the threshold voltage, which is suitable for monitoring diverse voltage levels.
Dual voltage detectors have two independent thresholds for monitoring and controlling different voltage levels.
Specialized for detecting overvoltage, these detectors activate countermeasures when the input voltage exceeds a set threshold.
Designed for low voltage detection, they trigger countermeasures like current supply limitation when the input voltage falls below a specified threshold.
Mainly used in microcontrollers and microprocessor reset circuits, they detect when the power supply stabilizes and outputs a reset signal, initiating normal operation.
*Including some distributors, etc.
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31 products found
31 products
Soki Co., Ltd.
420+ people viewing
Last viewed: 8 hours ago
Insulation resistance indicates the insulation condition of electrical equipment and circuits, and is one of the important measurement items for sa...
Nisshinbo Micro Devices Inc.
250+ people viewing
Last viewed: 34 minutes ago
■Summary R3160 is a voltage detector with maximum input of 60V, high accuracy, and low current consumption. It can be used to directly monitor volt...
Nisshinbo Micro Devices Inc.
170+ people viewing
Last viewed: 50 minutes ago
■Summary R3160N is a voltage detector with a maximum input of 60V, high accuracy, and low current consumption. It can be used to directly monitor v...
Amic Co., Ltd.
210+ people viewing
Last viewed: 23 hours ago
A single unit can calculate the voltage coefficient (ΔR) of resistors (1/16W, 1/10W, 1/8W, 1/4W products) and determine pass/fail. Ideal for voltag...
Yitoa Micro Technology Corporation
190+ people viewing
Last viewed: 21 hours ago
A single chip monitors the power supply voltage of multiple systems in the car for in-vehicle AV equipment. The high-voltage CMOS process achieves ...
Isahaya Electronics Co., Ltd.
210+ people viewing
Last viewed: 5 hours ago
■Adopts 1.5 wave 3 shot counting method. Built-in abnormal voltage detection circuit. This product has an earth leakage detection circuit and uses ...
Isahaya Electronics Co., Ltd.
140+ people viewing
Last viewed: 8 hours ago
This product constitutes an earth leakage detection circuit and uses a 0.5 wave one-shot counting method. By connecting a capacitor to the external...
Isahaya Electronics Co., Ltd.
210+ people viewing
Last viewed: 22 hours ago
This product constitutes a window comparator circuit, and it is possible to determine whether the input signal is within the range of two reference...
Isahaya Electronics Co., Ltd.
150+ people viewing
Last viewed: 8 hours ago
■Features This product has a latch circuit and has the function of holding the output LOW depending on the input signal. By using this product, it ...
Isahaya Electronics Co., Ltd.
170+ people viewing
Last viewed: 15 hours ago
This product is equipped with two comparators and one internal power supply, and can detect two voltage systems simultaneously. This makes it poss...
Isahaya Electronics Co., Ltd.
140+ people viewing
Last viewed: 9 hours ago
This product has a reset function. Detects an abnormality in the power supply voltage and outputs a reset signal. It also has a built-in delay circ...
CAREL Japan Co., Ltd.
70+ people viewing
Alerts you to equipment limits so you can take precautions to prevent your system from shutting down. The new fire and smoke detector is small and ...
Isahaya Electronics Co., Ltd.
190+ people viewing
Last viewed: 19 hours ago
This series is a window comparator analog IC that determines whether the input voltage is within the range of two threshold voltages (within the wi...
Monolithic Power Systems, Inc.
50+ people viewing
Last viewed: 10 hours ago
■Summary The MP26085 is a voltage and current control IC that integrates a precision voltage reference and current source, making it suitable for b...
Monolithic Power Systems, Inc.
40+ people viewing
Last viewed: 21 hours ago
■Summary The MP26075 is a linear, high performance, high efficiency, single cell Li-ion or Li-Polymer battery charger for AC adapter input in plug-...
Monolithic Power Systems, Inc.
50+ people viewing
Last viewed: 19 hours ago
■Summary The MP2681 is a highly integrated Li-Ion or Li-Polymer switch-mode battery charge controller with extensive protection and status display....
Monolithic Power Systems, Inc.
50+ people viewing
Last viewed: 1 day ago
■Summary The MP2681B is a highly integrated Li-Ion or Li-Polymer switch-mode battery charge controller with extensive protection and status display...
Monolithic Power Systems, Inc.
40+ people viewing
■Available product numbers ・MPQ79500FSGQE-0000-AEC1-Z MPQ79500FSGQE-0000-AEC1-P ・Part numbers ending in P and Z are the same part. P and Z indica...
