Prapto Nugroho
Jan 2005–Now
Electrical Engineering & Information Technology Dept., Gadjah Mada University
- Teaching Staff
Oct 2002 – Jan 2005
PT. Omedata Electronics (sub-con of Cypress
Semiconductor), Bandung, Indonesia
- Product Engineer
• Improve Yield, Quality and Productivity.
• Make Weekly Report and Control Standard Document.
· Control Test Program, Tools and Equipment.
• Analyze and Trouble shooting Hold Product.
• Responsible for Cypress’s PLD and Data Communication products.
June 2000 – July 2002
PT. YEB (sub-con of Yoshikawa and OKI
Semiconductor), Bintan Island, Indonesia
- Test Engineer
• Improve Yield, Quality and Productivity.
• Make Quality Monthly Report and Control Standard Document.
• Control Test Program, Tools and Equipment.
• Analyze and Trouble shooting Hold Product.
• Responsible for OKI’s Logic products.
1999–2000
High Frequency Lab., EE Dept., Gadjah Mada University
- Electronics Design Engineer
• Design and built data acquisition hardware for some sugar factory in East Java.
• Design and built Laboratory Equipment for Unissula University, Central Java.
• Design and built π/4-DQPSK hardware for Bachelor Thesis
Address: Iki Danchi, Fukuoka
Electrical Engineering & Information Technology Dept., Gadjah Mada University
- Teaching Staff
Oct 2002 – Jan 2005
PT. Omedata Electronics (sub-con of Cypress
Semiconductor), Bandung, Indonesia
- Product Engineer
• Improve Yield, Quality and Productivity.
• Make Weekly Report and Control Standard Document.
· Control Test Program, Tools and Equipment.
• Analyze and Trouble shooting Hold Product.
• Responsible for Cypress’s PLD and Data Communication products.
June 2000 – July 2002
PT. YEB (sub-con of Yoshikawa and OKI
Semiconductor), Bintan Island, Indonesia
- Test Engineer
• Improve Yield, Quality and Productivity.
• Make Quality Monthly Report and Control Standard Document.
• Control Test Program, Tools and Equipment.
• Analyze and Trouble shooting Hold Product.
• Responsible for OKI’s Logic products.
1999–2000
High Frequency Lab., EE Dept., Gadjah Mada University
- Electronics Design Engineer
• Design and built data acquisition hardware for some sugar factory in East Java.
• Design and built Laboratory Equipment for Unissula University, Central Java.
• Design and built π/4-DQPSK hardware for Bachelor Thesis
Address: Iki Danchi, Fukuoka
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InterestsView All (8)
Uploads
multiphase 10b digitally controlled oscillator (DCO) in ring
topology that employs fraction-based series to optimize the
transistors size, are presented. One of the advantages of
using fraction-based series is that it can reduce the power
consumption compared to the binary series without any cost
of tuning range and phase noise. The proposed DCO, which
was implemented on 0.18 μm CMOS technology, features the
tuning frequency 600 MHz to 4.27 GHz with power
consumption from 10 mW-40 mW. The measured phase
noise is –114.7 dBc/Hz (@4 MHz offset) of the carrier
frequency 2.75 GHz.
motely teleoperated vehicle such as mobile robot us-
ing haptic device. The perception principle of the
slave side is constructed based on the classical Po-
tential Field approach and especially used for detect-
ing the presence of obstacles. A feedback linerization
scheme is employed to render the mobile robot to be
a passive system. As the interaction with the obsta-
cle based on the potential ¯eld method is passive by
nature, with additional assumption that the user is
skilled, the connection between the haptic device and
the mobile robot is guaranteed to be stable. In this
work, in order to simplify the controller development,
no communication channel delay is assumed.
current load and a capacitor is described. Its frequency
can be shown to increase monotonically with the load
current giving rise to the name current controlled
oscillator (CCO). An accurate derivation of the formulae
relating the frequency with the NMOS size and the
current shows that nonlinearity error of its tuning
characteristic is proportional to the cube root of the
NMOS width/length ratio. The CCO circuit using
180um/0.18um NMOS with 1pF load can be tuned to
oscillate from 468 Hz to 305 MHz using load current
from 1nA to 1mA.
multiphase 10b digitally controlled oscillator (DCO) in ring
topology that employs fraction-based series to optimize the
transistors size, are presented. One of the advantages of
using fraction-based series is that it can reduce the power
consumption compared to the binary series without any cost
of tuning range and phase noise. The proposed DCO, which
was implemented on 0.18 μm CMOS technology, features the
tuning frequency 600 MHz to 4.27 GHz with power
consumption from 10 mW-40 mW. The measured phase
noise is –114.7 dBc/Hz (@4 MHz offset) of the carrier
frequency 2.75 GHz.
motely teleoperated vehicle such as mobile robot us-
ing haptic device. The perception principle of the
slave side is constructed based on the classical Po-
tential Field approach and especially used for detect-
ing the presence of obstacles. A feedback linerization
scheme is employed to render the mobile robot to be
a passive system. As the interaction with the obsta-
cle based on the potential ¯eld method is passive by
nature, with additional assumption that the user is
skilled, the connection between the haptic device and
the mobile robot is guaranteed to be stable. In this
work, in order to simplify the controller development,
no communication channel delay is assumed.
current load and a capacitor is described. Its frequency
can be shown to increase monotonically with the load
current giving rise to the name current controlled
oscillator (CCO). An accurate derivation of the formulae
relating the frequency with the NMOS size and the
current shows that nonlinearity error of its tuning
characteristic is proportional to the cube root of the
NMOS width/length ratio. The CCO circuit using
180um/0.18um NMOS with 1pF load can be tuned to
oscillate from 468 Hz to 305 MHz using load current
from 1nA to 1mA.