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Week |
Electronic Systems |
Graphics/Mechanisms/Workshop |
Comments |
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1 5-9-07 to 7-9-07 |
Circuits Definitions and units ( I, V, R ) Colour Code - calculations in circuits |
2D-Design page layout border and name, saving work and creating a GCSE Tech folder. Revision Simple Orthographic |
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2 10-9-07 to 14-9-07 |
Input/Process/Output Potential dividers Input circuits. Frost Alarms / Fire Alarms Sensors. |
More complex Orthographic Projections using wooden blocks. Dimensioning and labelling. Creating an Isometric view. |
Refer to the drawing board as an alternative. |
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3 17-9-07 to 21-9-07 |
Modelling using Crocodile clips. Alarm circuits. Water sensing. Switches and reversing circuits. Relays as an Output device. Latching using a DPDT relay. Protective diode. |
Designing using Pro Desktop. Introduction, use of functions, drawing to a size. Create a LEGO brick, and work to a specific size. |
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4 24-9-07 to 28-9-07 |
Test on material covered. Practical setting up of the circuits covered. |
Test on material covered. Further use of Pro Desktop. Orthographic views from the design. |
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5 1-10-07 to 5-10-07 |
Switches reed / tilt / rotary/ micro-switch Uses of such switches in circuits. |
Machines mechanisms Pulley systems. Use pulleys and introduce terms such as Driver and Driven. Rotational velocity RPM |
Use the Kits to set up pulley drives. |
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6 8-10-07 to 12-10-07
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The transistor as a switch and as a current amplifier. Function of base resistor, protective diode. Use as a buffer transistor. Base current, collector current and emitter current. Current gain. |
Examples of the applications of pulleys, Conical pulley systems. Calculations. Compound Pulley systems. Reversing the direction of rotation. Increasing or decreasing RPM.
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Grade Order Thursday 11th. October
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7 15-10-07to 19-11-07 Half Term next fortnight |
Charging and discharging of a Capacitor. Time constant. |
Machines, Load, Effort. M.A. & V.R. Levers. Useful machines. Classes |
Pulley blocks |
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8 5-11-07 to 9-11-07 |
555 timer IC. Monostable circuit. Set up with LED outputs. |
Turning effect of a force. Moments of forces in levers. Calculations |
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9 12-11-07 to 16-11-07 |
Test on material covered. 555 astable circuits set up with LED output. Variable frequency using RC |
Test on material covered. Gears, teeth ratio, RPM. Driver and driven. Idler gear. Increasing RPM, decreasing RPM. Torque. |
Use the kits to set up gear trains |
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10 19-11-07 to 23-11-07 |
Equations for the timer IC and applications for its use. |
Compound Gears. The gearbox. Bevel gears and worm drives. |
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11 26-11-07 to 30-11-07 |
The latch. The thyristor Applications. Revision |
Rack and pinion. Applications. Ratchet and Pawl. Application. Revision |
Grade Order Thursday 29th. November
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12 3-12-07 to 7-12-07 |
Double used for a Mid Year Assessment two papers. |
Double used for a Mid Year Assessment two papers. |
Mid Year Assessments |
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13 10-12-07 to 14-12-07 |
Construction of a Christmas tree 555 timer application with a pre-made pcb. |
Crank and slider/ Cams. Applications. |
Automata |
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14 17-12-07 to 19-12-07 |
Completion of Project |
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Christmas Holidays |
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Date |
Electronic Systems |
Graphics/Mechanisms/Workshop |
Comments |
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15. 8-1-08 to 11-1-08 |
741 OP amp dual rail power supplies single rail power supplies and CA314OE OP AMP |
Complete work on Gears and linkages. |
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16. 14-1-08 to 18-1-08 |
LOGIC Truth tables. Logic ICs. tying inputs down or up pin-outs |
Flowchart used for planning a mechanical system e.g. automatic tank filler w.c. system. |
17th. Jan Mid Year Assessments due (Y7 to Y10) @14.00 hrs |
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17. 21-1-08 to 25-1-08 |
Combinational logic problems. 7400 TTL and 4000 CMOS |
CAD CAM advantages and disadvantages. Practical materials used in projects. What affects choice of materials. |
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18. 28-1-08 to 1-2-08 |
Flowcharts used for planning an Electronic Circuit. e.g. frost alarm, or thermostat |
Manufactured items. What types of materials are used. Why are some materials more common than others? Stock sizes. Types of materials we stock in school for projects. |
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19. 4-2-08 to 8-2-08 Week leading up to Half Term |
Introduction of a PIC Programmable Interface Controller |
Workshop Processes use of tools / machines and safety. |
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20. 18-2-08 to 22-2-08 |
Complete PIC Boards and introduce software |
Complete PIC Boards and introduce software |
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21. 25-2-08 to 29-2-08 |
Further work on PICS |
Further work on PICS |
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22. 3-3-08 to 7-3-08 |
Short Design question Test. Issue of Coursework Handbook to consider Project choice. |
Short Design question test. Issue of Coursework Handbook to consider Project. |
Y10 Parents Eve 6th. March |
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23. 10-3-08 to 14-3-08 |
Investigation of the general situation in which the problem is set, to lead to a better definition of the problem and then the brief. |
Investigation of the general situation in which the problem is set, to lead to a better definition of the problem and then the brief. |
Grade Orders due 13th. March |
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24. 17-3-08 to 19-3-08 Easter Holidays |
As above with a spider diagram Use of the PowerPoint software Importing pictures from a network resource. Importing pictures from the Internet. |
As above with a spider diagram Use of the PowerPoint software Importing pictures from a network resource. Importing pictures from the Internet. |
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