Sleep Mode Circuit Circuit
The HA7210 oscillator is a versatile component that generates clock signals, which are essential for timing operations within the circuit. It operates by providing a precise frequency output, which can be adjusted based on external components connected to it. The integration of the IOL7642 quad CMOS op amp enhances the circuit's functionality by allowing for multiple amplification stages and signal conditioning processes. This combination is particularly effective in low-power applications where energy conservation is crucial.
The sleep-mode control circuit is designed to minimize power consumption when the system is not in active use. The logic high applied to the Reset input serves as a manual trigger for entering sleep mode, effectively halting operations to save energy. Alternatively, the RC timer provides an automatic reset capability, allowing the circuit to transition into sleep mode after a predetermined period of inactivity. The RC time constant can be adjusted by changing the resistor and capacitor values, providing flexibility in the design.
Upon receiving a signal from a microphone or sensor, the circuit exits sleep mode and resumes normal operation. This feature is particularly useful in applications such as motion detection, environmental monitoring, or any system that requires periodic activation based on external stimuli. The overall design ensures that the system remains responsive while maintaining energy efficiency, making it suitable for battery-powered devices or applications where power supply is limited. The HA7210 oscillator 10 combines with an IOL7642 quad CMOS op amp to produce a sleep-mode control circuit. The circuit is put into the sleep mode with a logic high applied to the Reset input or with an RC timer for automatic reset.
The system is awakened by a signal from the microphone/sensor. 🔗 External reference
Related Circuits
The current generated flows through clips placed on the earlobes. The output current is adjustable from 80 to 600 microamperes, following the recent launch in Europe. The described device utilizes a current generation mechanism that delivers a controlled microcurrent through...
The notch filter can be integrated into nearly any receiver to attenuate a specific frequency by over 30 dB. This filter is particularly useful for diminishing heterodynes and whistles. A notch filter, also known as a band-stop filter, is designed...
A NE555 integrated circuit (IC) is utilized for the design of a variable low-frequency oscillator, and a schematic is provided. The NE555 timer IC is a versatile and widely used device in various electronic applications, particularly in generating precise timing...
The simple mixer schematic is based on the common base principle, where input voltages are transformed into alternating currents that are summed to form the output. The simple mixer circuit utilizes the common base configuration of a transistor, which is...
An automatic multipurpose emergency lights circuit is presented. Typically, emergency lights are connected to the mains for standby when fully charged. In the event of a sudden power failure, the ambient light transitions from strong to weak, indicating a...
This circuit was designed to control power delivery to a Peltier cooler in a vehicle. The power to the load from the vehicle's battery is managed by a Single Pole Double Throw (SPDT) relay. The circuit utilizes an SPDT relay...