scholarly journals Pembuatan Prototipe Kursi Roda Inovatif Dengan Akses Suara Menggunakan Smartphone Berbasis Mikrokontroler ATMega 8A

2021 ◽  
Vol 1 (1) ◽  
pp. 32-42
Author(s):  
Akbar Prasetio
Keyword(s):  
Power Consumption ◽  
Voltage Drop ◽  
Sensor Response ◽  
Load Test ◽  
Low Power Consumption ◽  
Maximum Speed ◽  
Test Results ◽  
Motor Speed ◽  
Maximum Weight ◽  
Driver Circuit

This low power consumption microcontroller is able to execute instructions with a maximum speed of 16MIPS at a frequency of 16MHz and the ATmega8 is tested to work at a voltage between 4.5 - 5.5 V. Test results of motor drivers 1 and 2 working at a voltage of 4.99 prove that the driver circuit has worked according to its function, namely controlling the motor in 2 directions according to the input given. Motor speed can be controlled by adjusting the motor voltage, the higher the voltage, the faster the motor rotates. The voltage drop will slow down the motor to the desired speed, The sensor response if it encounters an obstacle in front of the wheelchair will stop 10 cm before hitting the object. Then the load test is added gradually from 0 to 451 grams. The wheelchair will appear to be starting to slow down at its maximum weight, making it less responsive to commands. After testing, it can be concluded that the tool works as desired, namely controlling the motion of the wheelchair with voice commands and it can be declared successful although there are still some weaknesses and shortcomings that must be improved.

scholarly journals Kendali Motor DC Brushless Modifikasi Mengunakan IC Ne555 Dan CD4017

Electrician ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 20-24
Author(s):  
Wiwin A Oktaviani ◽  
Ibnu Sukri
Keyword(s):  
Load Test ◽  
Brushless Dc Motor ◽  
Maximum Speed ◽  
Test Results ◽  
Motor Speed ◽  
Brushless Dc ◽  
Speed Controller ◽  
Unloaded State ◽  
Full Speed ◽  
Excellent Tool

In general, the Brushless DC motor speed controller uses an Atmega 16 microcontroller and a MOSFET, which often increases the MOSFET's temperature, especially when the motor is loaded. This article discusses the use of the IC NE555 and CD4017 as a frequency regulator to the MOSFET gate by periodically igniting the forward voltage from the change in the potentiometer value. We carried out the test in an unloaded and unloaded state with voltage variations of 2.5 Vac, 7.5 Vac, 12.5 Vac, and 19.5 Vac. The test results show an excellent tool response where the higher the frequency value, the motor speed will increase. The maximum speed when unloaded reaches rpm at a frequency of 574.6. Whereas in the load test, the full speed reaches 20987 rpm at a frequency of 524.675 Hz. During the test, there was no temperature increase in the MOSFET.  

A monolithic low-power-consumption driver circuit based on a Dickson charge pump for MEMS actuator applications

2020 ◽  
Vol 164 ◽  
pp. 107683 ◽  
Author(s):  
Hui Peng ◽  
Herbert De Pauw ◽  
Pieter Bauwens ◽  
Jan Doutreloigne
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Charge Pump ◽  
Low Power Consumption ◽  
Driver Circuit

26.3 Design of a Low Power Consumption a-IGZO TFT-based Vcom Driver Circuit with Long-Term Reliability

2011 ◽  
Vol 42 (1) ◽  
pp. 338-341 ◽  
Author(s):  
Hoon Jeong ◽  
Mallory Mativenga ◽  
Jin Jang ◽  
Sang Gul Lee ◽  
Yong Min Ha
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Driver Circuit ◽  
Igzo Tft

Research and Design of the DSRC Device Measuring Instrument

2014 ◽  
Vol 556-562 ◽  
pp. 2577-2580
Author(s):  
Xin You Li ◽  
Ze Bin Xu ◽  
Jin Xu Guo
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Radio Frequency ◽  
Low Power Consumption ◽  
Measuring Instrument ◽  
Test Results ◽  
The Core ◽  
Actual Operation ◽  
Design Proposal ◽  
Research And Design

Along with an increasingly wide utilization in the fields of ETC application, it becomes more and more important to measuring quickly and accurately on the key equipment of ETC system, such as OBU and RSU. This article is based on the measuring requirement of ETC system and propose a new design proposal by selecting STR715FR0 chip base on the core of ARM7TDMI series and 5.8GHz radio frequency transceiver circuit, the actual operation and test results show that the DSRC device Measuring Instrument works with stability, reliability and low power consumption, which enables convenient and efficient measuring to ensure the reliability and consistency of the ETC key equipment.

A Narrow Border Design and Low Power Consumption of a-Si:H TFT Gate Driver Circuit

2019 ◽  
pp. 620
Author(s):  
Jhongciao Ke ◽  
Techen Chung ◽  
Chiate Liao ◽  
Chiamin Yu ◽  
Yanbing Qiao ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Driver Circuit ◽  
Gate Driver

A Narrow Border Design and Low Power Consumption of a-Si:H TFT Gate Driver Circuit

2019 ◽  
pp. 620
Author(s):  
Jhongciao Ke ◽  
Techen Chung ◽  
Chiate Liao ◽  
Chiamin Yu ◽  
Yanbing Qiao ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Driver Circuit ◽  
Gate Driver

scholarly journals Research on Two Stage and Folded Cascode Bulk Driven OTA in 0.18um CMOS Process

2019 ◽  
Vol 8 (6S4) ◽  
pp. 994-997
Keyword(s):  
Comparative Analysis ◽  
Power Consumption ◽  
Biomedical Applications ◽  
Low Power Consumption ◽  
Cmos Process ◽  
Threshold Region ◽  
Test Results ◽  
High Input ◽  
Two Stage ◽  
Folded Cascode

This paper presence a comparative analysis of two stage and folded cascode bulk driven operational trans conductance amplifier (OTA) topologies for biomedical applications are presented. A two stage bulk driven OTA and Folded cascoded OTA operated with a 1Vpower supply. Bulkdriven PMOS-transistors as an input differential opamp provides high input common-mode range (CMR). To achieve low power consumption all transistors must be operated in sub threshold region. The test results are carried out in standard gpdk180nm CMOS technologies.

Design of a low-power-consumption a-IGZO TFT-based Vcom driver circuit with long-term reliability

2011 ◽  
Vol 19 (11) ◽  
pp. 825 ◽  
Author(s):  
Hoon Jeong ◽  
Mallory Mativenga ◽  
Sang Gul Lee ◽  
Yong Min Ha ◽  
Jin Jang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Driver Circuit ◽  
Igzo Tft

scholarly journals Research on Two stage and Folded Cascode Bulk Driven OTA in 0.18um CMOS Process

2019 ◽  
Vol 8 (9S2) ◽  
pp. 847-850
Keyword(s):  
Comparative Analysis ◽  
Power Consumption ◽  
Biomedical Applications ◽  
Low Power Consumption ◽  
Cmos Process ◽  
Threshold Region ◽  
Test Results ◽  
High Input ◽  
Two Stage ◽  
Folded Cascode

This paper presence a comparative analysis of two stage and folded cascode bulk driven operational trans conductance amplifier (OTA) topologies for biomedical applications are presented. A two stage bulk driven OTA and Folded cascoded OTA operated with a 1Vpower supply. Bulkdriven PMOS-transistors as an input differential opamp provides high input common-mode range (CMR). To achieve low power consumption all transistors must be operated in sub threshold region. The test results are carried out in standard gpdk180nm CMOS technologies

Development of a Portable Phosphate Detection System Using Cobalt Based Microelectrodes

2012 ◽  
Vol 503 ◽  
pp. 249-254
Author(s):  
Bei Lei Deng ◽  
Jian Hua Tong ◽  
Yin Bai ◽  
Chao Bian ◽  
Gui Li Yan ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Power Consumption ◽  
Low Power ◽  
Electrochemical Reaction ◽  
Detection System ◽  
Low Power Consumption ◽  
Phosphate Solution ◽  
Test Results ◽  
Portable Detection ◽  
Phosphate Detection

This paper presents a portable phosphate detection system based on electrochemical reaction mechanism using cobalt modified microelectrodes. The microelectrodes were fabricated by MEMS (Micro-electromechanical Systems) technology and modified by electrodeposition of cobalt. The performances of the microsensors were characterized by testing a series of standard phosphate solution. MSP430F4793 microcontroller was applied to control the detection process at low power consumption. Comparing with the test results achieved by using traditional electrochemical workstation method, this portable detection system has similar characteristics with the concentration range from 10-6 to 10-4 mol/L.

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