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Module of electronic security central with GSM communicator
Dokulil, Zdeněk ; Pust, Radim (referee) ; Burda, Karel (advisor)
The aim of this diploma thesis is to design and manufacture a small modular burglar alarm control panel with an emphasis on GSM communication functions. The first part of the thesis discusses history of control panels from the first attempts to present technologies. Also a classification of wired and wireless systems is defined. The second part contains an general proposal of the GSM-enabled panel design and description of the circuit. SIM 300C module has been chosen as a GSM terminal device. The final part contains description of key parts of the firmware and a detailed manual for end users. The proposed design has been realized and succesfully tested.
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Miniature stereoamplifier
Dokulil, Zdeněk ; Mišurec, Jiří (referee) ; Káňa, Ladislav (advisor)
The aim of this thesis was to design and construct a mains powered stereo power amplifier with minimal overall dimensions, equipped with a mute and tone/volume control circuit. The usage of an integrated power amplifier circuit was required. The circuit solution is based on a DC controlled integrated tone and volume control circuit LM1036, power amplifier TDA7262 and a number of supporting circuits for mute switching and temperature protection. An assembled sample of amplifier has 2 x 20 watts of output power, SNR 83,7 dB and a flat frequency response within the range of 3 dB for inputs from 16 to 20 000 Hz.
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Miniature stereoamplifier
Dokulil, Zdeněk ; Mišurec, Jiří (referee) ; Káňa, Ladislav (advisor)
The aim of this thesis was to design and construct a mains powered stereo power amplifier with minimal overall dimensions, equipped with a mute and tone/volume control circuit. The usage of an integrated power amplifier circuit was required. The circuit solution is based on a DC controlled integrated tone and volume control circuit LM1036, power amplifier TDA7262 and a number of supporting circuits for mute switching and temperature protection. An assembled sample of amplifier has 2 x 20 watts of output power, SNR 83,7 dB and a flat frequency response within the range of 3 dB for inputs from 16 to 20 000 Hz.
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Module of electronic security central with GSM communicator
Dokulil, Zdeněk ; Pust, Radim (referee) ; Burda, Karel (advisor)
The aim of this diploma thesis is to design and manufacture a small modular burglar alarm control panel with an emphasis on GSM communication functions. The first part of the thesis discusses history of control panels from the first attempts to present technologies. Also a classification of wired and wireless systems is defined. The second part contains an general proposal of the GSM-enabled panel design and description of the circuit. SIM 300C module has been chosen as a GSM terminal device. The final part contains description of key parts of the firmware and a detailed manual for end users. The proposed design has been realized and succesfully tested.
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