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The UPS Team 5 Team 5: Staff ► Michael Myers ► Fernando Muñoz ► Jesus Lopez ► Adam Bitter ► Jake Koturbo ► BSEE ► BSEE ► BSEE ► BSEE ► BSEE 2 Team 5: Expertise & Experience ► Michael Myers ► ► Fernando Muñoz ► ► Jesus Lopez ► ► Adam Bitter ► ► Jake Kotrba ► Expertise: Power and Electromagnetics Experience: Kimberly-Clark, General Motors Expertise: Power, Motors Experience: Airforce electrician Expertise: Controls, Power Experience: We energies, Gossen Corporation Expertise: Controls Experience: N/A Expertise: Power, Motors Experience: Chicago-Kenosha Building Developement 3 The UPS Power backup for small power consumption appliances: features and functions!!!!!! ► PCs ► Space heaters ► Elaborate more 4 AC Vac Sensor Jake + Main Switch Jesus Switch Jesus Quick Charger Fernando Trickle Charger Fernando + Battery Fernando Vdc Sensor Jake Inverter Mike Load Display Jesus CPU Adam + + Idc Sensor Jake + Performance Requirements ► ► ► ► ► ► ► ► ► ► ► ► ► ► Input AC Voltage: 105-132 V Input AC Current: max 15 A Input AC Frequency: 60Hz +/- 3Hz Output AC Voltage: 105-132 V Output AC Current: max 15 A Output AC Frequency: 60Hz +/- 3Hz Battery Size: 12V battery Battery Life: 1 hour Digital Functions: User display refreshed every 1/10 sec, monitoring and display input AC User Interface: LEDs indicator, push pad Power Mode: On/Off manual switch Sensory: Current, Voltage and Frequency Mounting: Feet Plug: Type B 6 Standard Requirements ► ► ► ► ► ► ► ► ► Operating Range: -15 -- 50ºC Max Operating Relative Humidity: 95% Operating Pressure Range: 1 atm +/- 15% Max Storage Duration: 10 years Energy Sources: AC, automotive battery Source connections: AC utility and DC battery Power Consumption: 5200 Watt hours per year Max Volume: 40000 cm3 Max Weight: 14 kg 7 Project Plan 8 AC Vac Sensor Jake + Main Switch Jesus Switch Jesus Quick Charger Fernando Trickle Charger Fernando + Battery Fernando Vdc Sensor Jake + Inverter Mike Load CPU Adam + + Idc Sensor Jake User Interface Jesus + Name: Michael Myers Major: Electrical engineering Team 5: UPS Assignment: block 1 Block 1: Inverter AC Vac Sensor Jake + Charging Switch Jesus Quick Charger Fernando Power Source Switch Jesus Trickle Charger Fernando + Inverter Mike Load CPU Adam + Battery Fernando Vdc Sensor Jake Idc Sensor Jake User Interface Jesus + Inverter Once the power fluctuates outside the boundaries a control switch will allow the inverter power to transfer to the circuit. 12 Power Inverter The job of this inverter is to transfer 12Vdc to 120Vac. This device will always be on Control flow switch will allow inverter power to 13 Signal Table Power Signals Type Direction Voltage Nominal Voltage Range Min Max Freq Freq Range Nominal Min Max % V-Reg V-Ripple Current Max Max Max Power1 VCC +12 DCPower Input 12.0V 10.2 13.2V DC 0 N/A 5.00% 0.1V 18A Power2 VCC -15V ACPower Output 120.0V 102V 132.0V AC 57 63 5.00% 0.25V 15.00A Analog and digital interfacing – N/A 14 Prototyping Plan Block Name Block Area (cm2) Total PCB Area (cm2) PCB Substrate Type Comp Attachment Type Socketed Components Types of Connectors Inverter 700 700 Fiber Glass Solder Yes Flat Pins 15 DFM Sub Circuit Type Applicable Worst Case Analysis Plan (See DFM Analysis Guide) Task Task 1 Task 2 Task 3 Task 4 Task 5 Task 6 Task 7 Task 8 Task 9 Task 10 Timer IC R, L & C Tol RLC Specs Gain vs Freq Phase vs Freq Slewrate BW Step Resp Input Impedance Output Impedance DC Offset V Total Noise Wave formation Max Offset Voltage DC Gain vs Component Variations DC Gain vs Component Variations Gain vs Freq vs Comp Var Phase vs Freq vs Comp Var Slewrate Power Bandwidth Pulse Response & Delay Input Impedance Smoother R, L & C Tol RLC Specs Gain vs Freq Phase vs Freq Slewrate BW Step Responce Input Impedance Output Impedance DC Offset V Total Noise Transformer Nominal Value or Max Value Adjustment Range, %/Turn Tolerance Around Nominal Derated Power Capacity Maximum Working Voltage Maximum Constant Current Maximum Surge Current Composition Dielectric or Form Q Factor or Frequency Variation Package 16 Inverter Block Diagram Timing Unit 57-63 HZ Transistor switching Transformer Out to Load DC input 12-15 VDC 17 Schematic Diagram 18 Functionality Simulation Supposed to be -12<=V<=12 before Transformed to -120<V<120 120V 80V 40V -0V -40V -80V -120V 0s 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms 100ms V(V1:+) Time Due to Pspice limitations, a worst Case scenario was not able to be Obtained. This is the desired output not Yet achieved 19 Bill of Materials Part Part # Quantity Description Price Source R1 311-10.0KFCT-ND 1 10k Resistor, ±.1%, .25W 0.88 Digikey R2 311-100KFCT-ND 1 100k Resistor, ±.1%, .25W 0.88 Digikey R3 311-100FCT-ND 1 100 ohm Resistor, ±.1%, .25W 0.88 Digikey R4 4LG54BK-ND 1 50k potentiometer, ±25%, .3W 0.59 Digikey C1, C2 493-1329-ND 1 0.1 uF Capacitor, ±10% 0.26 Digikey C3 493-1329-ND 1 0.01 uF Capacitor, ±10% 0.54 Digikey C4 P11706-ND 1 2700 uF Capacitor,±10% 6.37 Digikey Q1 497-2622-5-ND 1 TIP41A, NPN Resistor, 100V 0.95 Digikey Q2 497-2552-5-ND 1 TIP42A, PNP Resistor, -100V 1.04 Digikey L1 5300-01-ND 1 1uH, ±15% 0.67 Digikey T1 273-1511 1 Transformer 1/10 10.49 Radio Shack 20 Name: Fernando Muñoz Major: Electrical engineering Team 5: UPS Assignment: Power Block Block 2a: Charger (Rectifier) Block 2b: Battery Vac Sensor Jake + Charging Switch Quick Charger Fernando Power Source Switch Trickle Charger Fernando + Inverter Mike Load CPU Adam + Battery Fernando Vdc Sensor Jake User Interface Jesus + Idc Sensor Jake 22 Main Purpose Keep a constant charge in the battery so when commercial power is lost, the device to which the UPS is connected to stays on for about a half hour or until the battery drains completely. Provide 5 VDC logic to the CPU which power s all essential controls and sensors. 23 Power Inputs and Outputs Transformer Input : 120 VAC / 20Amp Transformer Output / Rectifier Input : 15.7 VAC (Step Down) Rectifier Output #1 : 14.3 VDC Rectifier Output #2 : 5 VDC 24 Power Electrical Interface Signals Power Signals Type Direction Voltage Voltage Range Nominal Min Max Freq Freq Range Nominal Min Max % V-Reg V-Ripple Current Max Max Max Power-1 AC Input AC Power Input 120V 102V 132V 60Hz 57Hz 63Hz 15.00% N/A 15A Power-2 VCC +14.3V DC Power Output 14.3V 12.15V 15.73V DC 0 N/A 1.00% 0.01V 35A Power-3 VCC +14.3V DC Power Output 14.3V 12.15V 15.73V DC 0 N/A 1.00% 0.01V 2A 25 Block diagram of Power Supply System 120 VAC Main Input Transformer Rectification 15.7 VAC Smoothing 14.3 VDC Regulation 14.3 / 5 VDC Regulated output 14.3 VDC With Ripple 26 5 VDC Power Regulated System 27 Prototyping Plan Block Name Power Block Area (cm2) 700 Total PCB Area (cm2) 700 PCB Substrate Type Copper Comp Attachment Type Solder Socketed Components Types of Connectors No B type plug Flat Pins 28 Functionality Simulations 29 Transient Response 200V 0V -200V 0s V(120AC:+) 10ms 20ms ( V(VA)- V(VB)) 30ms 40ms 50ms 60ms Time 30 Maximum WV for Capacitors ► Referencing to the manufacturer (Digikey) specification the following value was chosen as WV. 470uF Capacitor: ► WV : 10VDC ► Leakage Current: 235uA ► Ripple Current: 570mA ► Dimensions: 32(L)*10.3(D)*0.8(d) mm 31 Power Ratings Diodes: P = V*I P = (16V)*(2A) = 32W Resistors: They were only placed in Pspice simulation in order to have the transformer work properly and give accurate results. 32 Capacitor Tolerance This Solid Axial 470uF Capacitor has a range of small long life (20000H). Tolerance±20% and ±10% on request Usable Temperature range:-80oC to +125oC 33 Off Board Connectors ► Battery Post: To achieve a mechanically secure and tight connection we’ll be using adjustable clamps. ► Transformer: It will be sitting on a hard surface at the bottom of the UPS, we’ll use flat pin connectors to connect wires going to the rectifier. ► DC to DC Connector: Flat pin connectors. 34 Charge Type Trickle Charge : Constantly supplies the battery with 14.3 VDC at 2 Amps. Logic Charge : Constant +5 VDC converted from the 12 VDC coming out of the battery, this will power CPU, sensors and interface. 35 Bill of Materials Part Part # Quantity Description Price Source C1 4278PHCT-ND 1 470 uF Capacitor 4.49 Digikey C2,C3 4931829-ND 1 0.1 uF Capacitor 0.54 Digikey Conv. 179-1011-ND 1 DC to DC Converter 71.5 Digikey Diode 1N4001 1 Bridge Rectifier 1.6 Maplin VDC P174-ND 1 Lead Acid Battery 34.56 Digikey T1 DCT-10-120 1 Transformer 120/16 56 Grainger 36 Name: Jesus Lopez Major: Electrical engineering Team 5: UPS Assignment: blocks 3 and 4 Block 3: Switching Gear Block 4: Display Switching Gear The switching for this project will be effectuated by a solid state relay. ► Main switch. ► Charging switch. Note: other switches may be needed for different. Blocks. 38 AC Vac Sensor Jake + Charging Switch Jesus Quick Charger Fernando Main Switch Jesus Trickle Charger Fernando + Inverter Mike Load CPU Adam + Battery Fernando Vdc Sensor Jake Idc Sensor Jake User Interface Jesus + Switching Gear Sub-Blocks ► Main Switch ► Charging Switch Note: switch elimination 40 From the Utility Main Switch To the load From the inverter From the utility Charging Switch To the rectifier 41 Main Switch Selects CPU utility or battery. control. 42 Main Switch Nominal Ratings Control Input : 6 Vdc Input: 120 Vac Output: 25 A 43 Charging Switch Battery Charging CPU control 44 Switch Nominal Ratings Control Input : 5 Vdc Input: 120 Vac Output: 30 A 45 Main Switch Signal Table Voltage Range Power Signals Type Direction Freq Range Voltage Nominal Min Max Freq Nominal Min Max % V-Reg Max V-Ripple Max Current Max Power1 DC +5 DC Power Input 5.0V 4.75V 5.25V 0 0 0 5.00% 0.1V 1.2A Power1 AC AC Power Input 120V 102V 132V 60Hz 57Hz 63Hz 15.00% N/A 1.0A Power2 AC AC Power Output 120V 102V 132V 60Hz 57Hz 63Hz 15.00% N/A 1.0A Power3 AC AC Power Input 120V 102V 132V 60Hz 57Hz 63Hz 15.00% N/A 1.0A 46 Charging Switch Signal Table Voltage Range Power Signals Type Direction Freq Range Voltage Nominal Min Max Freq Nominal Min Max % V-Reg Max V-Ripple Max Current Max Power1 VCC +5 DC Power Input 5.0V 4.75V 5.25V 0 0 0 5.00% 0.1V 1.2A Power2 AC AC Power Input 120V 102V 132V 60Hz 57Hz 63Hz 15.00% N/A 1.0A Power3 AC AC Power Input 120V 102V 132V 60Hz 57Hz 63Hz 15.00% N/A 1.0A 47 Switching Key Components ► SPDT switch ► SPST switch Note: zero cross switch application & phase lock loop 48 Switches Bill of Materials Item Package Units Power Price $ Vendor Consumption Switch Relay 1 27mW 34.00 Digikey Switch Relay N/A 27mW 34.00 Digikey 49 Switching Gear DFM Plan Main Switch Sub-Block Type Input Type Max input Voltage Min Input Voltage Power Consumption Relay AC: Output DC: Control Input Output: 132 V Control Input: 6.5 V Output: 102 V Control Input: 3.5 V 17 mW 50 Display Features: On/Off manual power switch. On/Off LEDs. AC/DC LEDs. Fast/Slow charging mode LEDs. Remaining power LED array indicator. 51 AC Vac Sensor Jake + Charging Switch Quick Charger Fernando Power Source Switch Trickle Charger Fernando + Inverter Mike Load Display Jesus CPU Adam + Battery Fernando Vdc Sensor Jake Idc Sensor Jake + Display Sub-Blocks Remaining power LED bar indicator UPS status LEDs On/Off Switch Manual Input Power On/Off Switch To the battery terminal From the CPU LED Bar From the CPU Status LEDs 54 Display Signal Table Voltage Range Power Signals Type Direction Freq Range Voltage Nominal Min Max Freq Nominal Min Max % V-Reg Max V-Ripple Max Current Max Power1 VCC +5 (switch) DC Power Input 5.0V 4.75V 5.25V DC 0 N/A 5.00% 0.1V 1.2A 8-bit channel Digital Input 5.0V 4.75V 5.25V DC 0 N/A 5.00% 0.1V 1.2A 55 Display Key Components ► LED Bar Graph Arrays ► Manual Switch ► LEDs 56 Display Bill of Materials Item Package Units Power Price $ Vendor Consumption LED bar graph array Chip 1 750 mW 2.10 DigiKey LEDs N/A 4 300mW 2.00 DigiKey On/Off switch N/A 1 Minimal Resistance 1.50 DigiKey 57 Display DFM Plan Display Sub-Block Type Input Type Max input Min Input Power Voltage Voltage Consumption Remaining Power LED Chip DC 6.0 V 3.5 V 750 mW Status LEDs Indicators DC 6.0 V 3.5 V 300 mW On/Off Switch Manual N/A N/A N/A 58 End of UPS blocks 3 and 4 !!! 59 Name: Adam Bitter Major: Electrical engineering Team 5: UPS Assignment: CPU AC Vac Sensor Jake + Charging Switch Quick Charger Fernando Power Source Switch Trickle Charger Fernando + Inverter Mike Load CPU Adam + Battery Fernando Vdc Sensor Jake Idc Sensor Jake User Interface Jesus + CPU The CPU will do the following things: • Read in a utility (AC) voltage signal • Read in a battery voltage signal • Control the switching of the power source switch • Control the switching of the charging switch • Output a battery life signal to the display 62 CPU The CPU will switch to the battery when the voltage read in is below 105 V When the battery is run dead the CPU will switch on the fast charger for a certain period of time 63 CPU The CPU will send a signal to the display indicating the life of the battery based on the battery voltage level If necessary it will also be able to send more outputs to the display 64 Sensor Signals ►8 bits = 28 = 256 values ► Vac range = 0 – 132V ► 132/256 approx = .5V per bit ► Vdc range = 0 – 14.3V ► 14.3/256 approx = 50mV per bit 65 Vac Sensor Input ► Digital Input ► 8 bits of input at 5V ► Approx .5V per bit ► UPS switched on when input is less than 105V = 11010010 66 Vdc Sensor Input ► Digital Input ► 8 bits of input at 5V ► Approx 50mV per bit 67 Display Output ► Digital Output ► 8 bits of output at 5V ► Display is LED’s ► 8 levels of battery life ► 11111111 is fully charged battery ► 00000000 is dead battery 68 Lattice M4 64/32 15JC 69 CPU Dig Device CPU Outpu t Type Std Input Type Std DC Drive Device Parameters Tech Type CMOS Vil max Vih min Iil (-) Max Iih max Vol max Voh min Iol max Ioh (-) Min Vhyst 0.8V 2.0 V 0.2 uA 0.2u A 0.6V 4.3V 4.6m A -2mA N/A Checked 70 CPU Timing ► Min Clock Setup Time: ► Min Clock Hold Time: ► Min Input Register Setup Time: ► Min Input Register Hold Time: ► Min Input Latch Setup Time: ► Min Input Latch Hold Time: ► Max Output Enable Time: ► Max Output Disable Time 5ns 3.5ns 2ns 3ns 2ns 3ns 9.5ns 9.5ns 71 CPU Prototype Plan Block Name Block Area (cm2) Total PCB Area (cm2) PCB Substrate Type Comp Attachment Type Socketed Componen ts Types of Connector s CPU 100 12 Copper solder Yes Ribbon Cable 72 CPU Signals Digital Signals Vaci 8-bits Vdc 8-bits Idc 8-bits Switch 1-bit Battery 8-bits Power 2-bits Type Digital Digital Digital Digital Digital Digital Dir Output Input Freq Logic Input Characteristics Output Characteristics Structure Structure Nominal Voltage Vih Min Iih Max ViL Max IiL Max Voh Min Ioh Max VoL Max IoL Max Input N/A Input N/A Input N/A Output N/A Output N/A Output N/A Standard Standard Standard Standard Standard Standard 2.0Mhz 2.0Mhz 2.0Mhz 2.0Mhz 2.0Mhz 2.0Mhz 5V 5V 5V 5V 5V 5V 2.0V 2.0V 2.0V N/A N/A N/A 400uA 400uA 400uA N/A N/A N/A 0.8V 0.8V 0.8V N/A N/A N/A -1.2mA -10uA -1.2mA N/A N/A N/A N/A N/A N/A 5.25V 5.25V 5.25V N/A N/A N/A 2mA 2mA 2mA N/A N/A N/A 4.75V 4.75V 4.75V N/A N/A N/A 1mA 1ma 1ma 73 CPU Power Power Signals Power1 VCC +5 Type Direction Voltage Nominal DC PowerInput 5.0V Voltage Range Freq Freq Range % V-Reg V-Ripple Current Min Max Nominal Min Max Max Max Max 4.75V 5.25V DC 0 N/A 5.00% 0.1V 1.3A 74 Pseudo Code Start: Read in Vac if Vac < 11010010 switch on power switch if power switch on if Vac > 11010010 switch off power switch Read in Vdc output Vdc to display if Vdc < Dead Battery switch on fast charger for 1 hour Loop Start 75 CPU Signals Input: AC voltage: DC voltage: 8 bits, 5V DC 8 bits, 5V DC Output: Display: 8 bits, 5V DC Charging Switch: 1 bit, 5V DC Power Switch: 1 bit, 5V DC 76 Name: Jake Koturbo Assignment: block 6 Block 6: Sensors Purpose: It’s how the CPU interfaces with the input and output power. 78 Advantages of Using Sensors ► Upper and lower limit can be adjusted with a small change in the CPU’s programming. ► Provide accurate user interface read-outs 79 Sensor Performance Requirements Input: Analog (nominal) ► 120Vac ► 5Vdc Output: Digital (nominal) ► 8-bits (5V logic) 80 Output continued… ► Directly interface with only the CPU ► All sensor outputs will supply the eight bit signal to the CPU. ► All sensors will use A/D converters and therefore use 5volt. 81 The reason for 8-bits ►28 = 256 partitions ►132V divided by 256 gives us a measuring accuracy of about 0.5V 82 Sensor Standard Requirements Operating Voltage: ► Max 5.25Vdc ► Min 4.75Vdc Operating Temperature: ► Max 50 C ► Min -15 C Humidity: ► Max 95% r.h. 83 AC Vac Sensor Jake + Charging Switch Quick Charger Fernando Power Source Switch Trickle Charger Fernando + Inverter Mike Load CPU Adam + Battery Fernando Vdc Sensor Jake Idc Sensor Jake User Interface Jesus + Sensor Power Interface Type DC Power Direction Input Voltage Nominal 5.0V Voltage Range Min Max 4.75V 5.25V Frequency Nominal 0 Frequency Range Min Max 0 0 % VReg. VRipple Current 5% 0.2V 0.5A 85 Sensor Analog Interface Analog Signal Type Direction Coupling Voltage Amplitude Maximium Impedence Frequency Range Min Max Min Max Leakage Max Vac Analog Input Xfmr 132V 5k 20k 0 63Hz 500uA Vdc Analog Input Xfmr 14.3V 5k 20k 0 1Hz 500uA Idc Analog Input Xfmr 5.25V 5k 20k 0 1Hz 500uA 86 Sensor Digital Interface Digital Signals Type Direction Input Structure Technology Logic Voltage Output Characteristics Voh Min Ioh Max Vol Max Iol Min Vac 8-bits Digital Output Standard TTL 5V 3.25V 0.5mA 1.8V 0.1mA Vdc 8-bits Digital Output Standard TTL 5V 3.25V 0.5mA 1.8V 0.1mA Idc 8-bits Digital Output Standard TTL 5V 3.25V 0.5mA 1.8V 0.1mA 87 Simplified Sensor Analog Signal Convert to a proportion al 0-5Vdc analog signal CPU ADC Vcc~5V 88 Vac Sensor ► Measure the input voltage from the commercial supply. ► Produce an eight bit output. ► Signal is monitored by the CPU to initilize the use of the inverter. 89 Placement of the Vac Sensor AC power Vac Sensor AC power CPU 90 Basic Schematic Layout 91 Because of the large voltage capabilities of the bridge rectifier, no stepdown transformer is needed Basic Schematic Layout Without the transformer Calculations for the Vac Sensor ► If Rtotal = R1 + R2 and resistors are .25W ► I=P/Vmax, I = 0.25W/132V = 2.08mA ► Rtotal = 132V/2.08mA = 122k ► R2 = 5*122k/132 = 4.6k ► R1 = Rtotal – R2 = 117.4k 94 95 120V Transient Analysis 80V 40V 0V 0s V(R2:1) 10ms V(Vrec) 20ms 30ms 40ms 50ms 60ms Time 96 120V DC Sweep 80V 40V 0V 0V 20V V(R2:1) V(Vrec) 40V 60V 80V V_Vutility 100V 120V 140V 97 Major Components ► Bridge Rectifier ► Resistors ► Capacitor ► Analog to Digital Converter 98 Vdc Sensor ► Measure the battery voltage. ► Produce an eight bit output directed to the CPU. ► Used to determine emergency CPU shutdown (when battery runs too low). ► Used in conjunction with the Idc sensor to estimate battery expectancy. 99 Placement of the Vdc Sensor Quick Charger Trickle Charger Inverter Vdc and Idc Sensors Battery 100 101 Calculations for the Vdc Sensor ► If Rtotal = R1 + R2 and resistors are .25W ► I=P/Vmax, I = 0.25W/15.7V = 15.9mA ► That’s too much current, Use I = 500uA ► Rtotal = 15.7V/500uA = 31.4k ► R2 = 5*31.4k/15.7 = 10k ► R1 = Rtotal – R2 = 21.4k 102 103 8.0V 4.0V 0V 0V 4V 8V 12V 16V 20V V(R2:2) V_Vbattery 104 Major Components ► Resistors ► Analog to Digital Converter 105 The ADC is in both sensors ► It’s the major major component 106 Comparison between CPU and ADC ADC output CPU input Vlow(max) 0.4V 0.8V Vhigh(min) 2.4V 2.0V Ilow(max) 1.6mA N/A Ihigh(min) -360uA N/A Limits fall within acceptable range Further Comparison between CPU and ADC ► ADC Conversion time 103us – 114us ► CPU Setup time = 6ns Hold time = 0ns Total time required for latch => 6ns ►? 108 109 110 Bill of Materials ► Resistors 4.64k Ω ±1% 118k Ω ±1% 10k Ω ±1% 21.5k Ω ±1% ► ► Rated: 0.25W 200V working max 111 B.O.M. continued… ► Capacitor 470uF±20% WV = 10V Voltage range 6V-200V 112 B.O.M. continued… ► Bridge Rectifier Imax = 1A 50V < Vrated < 1000V 50Hz < operating frequency < 1kHz 1Vmax, drop per diode 113 B.O.M. continued… ► Analog to Digital Converters (ADC) Vcc supply = 5V ± 0.25V Clock frequency: 100kHz – 1460kHZ Output High: 2.4Vmin -360uA Low: 0.4Vmax 1.6mA Input 1. 0-5V range 2. 1uA max 114 B.O.M. continued… ► 8- Conductor Ribbon (6’’ long) 300Vmax 26AWG stranded 115 Block Prototyping Plan Template Block Name Block Area (cm2) Total PCB Area (cm2) PCB Comp Substrate Attachment Type Type Socketed Components Types of Connectors Sensors 120 700 Fiber Glass N/A Spade connector, Cupper bus, easy disconnect Wire Wrap 116 Compiled B.O.M. Part Part # Quantity Description Price (1) Source R1 MFR-25FBF4K64 1 4.64k Resistor 0.11 Digikey R2 MFR-25FRF118K 1 118k Resistor 0.11 Digikey R3 MFR-25FBF10K0 1 10k Resistor 0.11 Digikey R4 MFR-25FBF21K5 1 21.5k Resistor 0.11 Digikey C1 4173PHBKND 1 470uF Capacitor 3.01 Digikey 117 Compiled B.O.M. cont… Part Part # Quantity Description Price (1) Source 3.00 Iguana Labs ADC ADC0804 2 Analog-to-Digital Conv. D 497-2622-5ND 1 Bridge Rectifier ? ? Ribbon WM08-06-ND 2 Ribbon 1.08 Digikey PCB 3.00 4 spade connectors (m&f pairs) 2.50 Chester's 4 Ribbon Connectors(m &f pairs) 5.10 Chester's PCB Con1 Con2 1 Chester's 118 Compiled B.O.M. cont… ► Approximately $25 without the bridge rectifier ► Original Material Estimate: $126 Well under bid ► Original Estimated Hours 50 hrs. Quickly approching 119 Bill of Materials Part Part # Quantity Description Price (1) Source R1 311-4.6KFCT-ND 1 4.6k Resistor 0.88 Digikey R2 311-120KFCT-ND 1 120k Resistor 0.88 Digikey R3 311-10kFCT-ND 1 10k ohm Resistor 0.88 Digikey R4 4LG22K-ND 1 22k potentiometer 0.59 Digikey C1 4173PHBK-ND 1 470uF Capacitor 3.01 Digikey ADC ADC0804 2 Analog-to-Digital Conv. 3.00 IguanaLabs D 497-2622-5-ND 2 Bridge Rectifier ? 120 121 Chronological Disparities Can’t begin to construct prototype until all parts have been obtained. Can’t obtain all parts until part list has been compiled. Can’t test the whole project as a hole until everyone gets their blocks put together and debugged. Can’t test the whole project until all safety standards and regulations have been met. Prototype UPS Shelf 123