2013:Electrical Main - Revision history

Larry: /* Links to Other Important Stuff */

2013-03-06T20:53:42Z

Links to Other Important Stuff

← Older revision		Revision as of 13:53, 6 March 2013
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	= Links to ~~Other~~ Important Stuff =		= Links to Important Stuff =

	[[2013:Robot IO Map]]		[[2013:Robot IO Map]]


	= Robot Electromechanical Design Features  =		= Robot Electromechanical Design Features  =

2013-03-06T20:53:22Z

← Older revision		Revision as of 13:53, 6 March 2013
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	~~= Electrical Subteam Members =~~

	*'''Students'''





	*'''Mentors'''





	~~= Master Task List =~~

	~~=== High Priority ===~~



	~~=== Medium Priority ===~~


	~~=== Low Priority ===~~


	~~= Sub Task List =~~

	= Links to Other Important Stuff =		= Links to Other Important Stuff =

2013-02-22T00:49:20Z

Custom Circuit Boards

← Older revision		Revision as of 17:49, 21 February 2013
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	*(1) 22K resistor		*(1) 22K resistor
	*(1) vector board 2"x2"		*(1) vector board 2"x2"
			=== I2C LED Drivers ===
			*(1) vector board 2"x3"
			*(1) 4-pin header
			*(8) 3-pin header
			*(16) NTD4906N MOSFET
			*(2) MCP23008 I2C 8-bit register
			*(2) 18-pin IC socket

	= Electrical Main Subteam's Engineering Notebook =		= Electrical Main Subteam's Engineering Notebook =

2013-02-22T00:42:18Z

Custom Circuit Boards

← Older revision		Revision as of 17:42, 21 February 2013
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	== Custom Circuit Boards ==		== Custom Circuit Boards ==
	=== Optical Slot Sensors Interface for OPB819(Climber) ===		=== Optical Slot Sensors Interface for OPB819 (Climber) ===
	*(8) 3-pin header		*(8) 3-pin header
	*(4) 100K resistors		*(4) 100K resistors

2013-02-22T00:37:05Z

Custom Circuit Boards

← Older revision		Revision as of 17:37, 21 February 2013
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	== Custom Circuit Boards ==		== Custom Circuit Boards ==
	=== Optical Slot ~~sensors~~ OPB819(Climber)===		=== Optical Slot Sensors Interface for OPB819(Climber) ===
	*(8) 3-pin header		*(8) 3-pin header
	*(4) 100K resistors		*(4) 100K resistors
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	*(4) 150 ohm resistors		*(4) 150 ohm resistors
	*(1) vector board 1"x3"		*(1) vector board 1"x3"
	=== Homemade Optical Beam Sensors (Climber)===		=== Homemade Optical Beam Sensors (Climber) ===
	*(4) TSAL6100 LED's		*(4) TSAL6100 LED's
	*(1) 4 ohm resistor		*(1) 4 ohm resistor

2013-02-22T00:35:33Z

+12V Distribution

2013-02-22T00:32:08Z

Robot Electromechanical Design Features

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 **Driver circuit can be either VO14642AT opto-coupled MOSFET or NTD4906N FET
 ***VO14642AT LED input requires 2mA drive - I2C register is capable of 3mA Ioh.
 = Electrical Main Subteam's Engineering Notebook =

2013-02-10T19:51:33Z

Robot Lights & Driver Circuits

← Older revision		Revision as of 12:51, 10 February 2013
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	**2A per 150 LEDs. 40mA per LED. Approx 750mA per 2 foot strip (each color).		**2A per 150 LEDs. 40mA per LED. Approx 750mA per 2 foot strip (each color).
	**Driver circuit can be either VO14642AT opto-coupled MOSFET or NTD4906N FET		**Driver circuit can be either VO14642AT opto-coupled MOSFET or NTD4906N FET
			***VO14642AT LED input requires 2mA drive - I2C register is capable of 3mA Ioh.

	= Electrical Main Subteam's Engineering Notebook =		= Electrical Main Subteam's Engineering Notebook =

2013-02-09T20:42:40Z

Sensors

← Older revision		Revision as of 13:42, 9 February 2013
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	*Optek OPB819 Slotted Optical Sensor		*Optek OPB819 Slotted Optical Sensor
	**LED requires 20mA. No internal resistor, so needs external limiting resistor. Vf=1.8v. If 5V supply, use 150 ohms; if 12V supply, use 470 ohms.		**LED requires 20mA. No internal resistor, so needs external limiting resistor. Vf=1.8v. If 5V supply, use 150 ohms; if 12V supply, use 470 ohms.
	**Output is NPN open-collector. Output spec'd at 100uA when ON. So 10K pullup in Digital Sidecar is too small for sensor to pull it down reliably - need another transistor between like a FET. Have 100K pullup on sensor output.		**Output is NPN open-collector. Output spec'd at 100uA when ON. So 10K pullup in Digital Sidecar is too small for sensor to pull it down reliably - need another transistor between like a FET. NOTE: extra transistor will invert the output. Have 100K pullup on sensor output.
	*US Digital E4P shaft encoder		*US Digital E4P shaft encoder
	**output is compatibale with Digital Sidecar 5V digital IO with no further interface components needed.		**output is compatibale with Digital Sidecar 5V digital IO with no further interface components needed.

2013-02-09T20:11:50Z

Sensors

← Older revision		Revision as of 13:11, 9 February 2013
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	**130/232=0.56mW/cm2 yields about 1.5mA detector Ic; 65/232=0.28mW/cm2 yields about 0.8mA detector Ic; rated performance light intensity is 1mW/cm2, so we would be a bit below this but probably still usable.		**130/232=0.56mW/cm2 yields about 1.5mA detector Ic; 65/232=0.28mW/cm2 yields about 0.8mA detector Ic; rated performance light intensity is 1mW/cm2, so we would be a bit below this but probably still usable.
	**LED requires 100mA for rated luminosity. Vf=1.4V. Needs external limiting resistor. For 12V supply use 100 ohms.		**LED requires 100mA for rated luminosity. Vf=1.4V. Needs external limiting resistor. For 12V supply use 100 ohms.
			**Phototransistor when ON sinks about 0.5mA or more, which would be just about right for Digital Sidecar pullup of 10K.
	*Banner sensors		*Banner sensors
	**Q10RN6R is open-collector NPN (Dark Operate), so 10K pullup in Digital Sidecar is sufficient - no extra interface componets needed. Sensor power is 12Vdc @ 15mA.		**Q10RN6R is open-collector NPN (Dark Operate), so 10K pullup in Digital Sidecar is sufficient - no extra interface componets needed. Sensor power is 12Vdc @ 15mA.