Main Board Version 3 - Revision history

Llange: Adding a column with signal names for Pin Header J2

2022-07-12T19:40:28Z

Adding a column with signal names for Pin Header J2

← Older revision		Revision as of 19:40, 12 July 2022
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	{\| class="wikitable"		{\| class="wikitable"
	\|'''Pin'''		\|'''Pin'''
			\|'''Signal'''
	\|'''Name'''		\|'''Name'''
	\|-		\|-
	\|1		\|1
			\|ENC_B/S3
	\|Encoder channel B/Resolver S3		\|Encoder channel B/Resolver S3
	\|-		\|-
	\|2		\|2
			\|SJ4
	\|GND/Resolver center point S1S4		\|GND/Resolver center point S1S4
	\|-		\|-
	\|3		\|3
			\|ENC_A/S2
	\|Encoder channel A or single channel input/Resolver S2		\|Encoder channel A or single channel input/Resolver S2
	\|-		\|-
	\|4		\|4
			\|ENC_Z/R1
	\|Index pulse input/5V output/Resover excitation R1		\|Index pulse input/5V output/Resover excitation R1
	\|-		\|-
	\|5		\|5
			\|SIG_CRUISE
	\|Cruise Control Input (12V)		\|Cruise Control Input (12V)
	\|-		\|-
	\|6		\|6
			\|THROTTLE1
	\|Throttle Input (0-3.3V)		\|Throttle Input (0-3.3V)
	\|-		\|-
	\|7		\|7
			\|SIG_START
	\|Start input (12V)		\|Start input (12V)
	\|-		\|-
	\|8		\|8
			\|THROTTLE2
	\|Regen Pot Input (0-3.3V)		\|Regen Pot Input (0-3.3V)
	\|-		\|-
	\|9		\|9
			\|SIG_BRAKE
	\|Brake Input (12V)		\|Brake Input (12V)
	\|-		\|-
	\|10		\|10
			\|OUT_BRAKE
	\|Brake output (open collector 300mA)		\|Brake output (open collector 300mA)
	\|-		\|-
	\|11		\|11
			\|SIG_MPROT
	\|Motor Protection Switch (12V, PWM inhibit when low)		\|Motor Protection Switch (12V, PWM inhibit when low)
	\|-		\|-
	\|12		\|12
			\|OUT_DCSW
	\|DC contactor output (open collector 300mA)		\|DC contactor output (open collector 300mA)
	\|-		\|-
	\|13		\|13
			\|SIG_FORWARD
	\|Forward (12V)		\|Forward (12V)
	\|-		\|-
	\|14		\|14
			\|OUT_ERR
	\|Error Signal (open collector 150mA)		\|Error Signal (open collector 150mA)
	\|-		\|-
	\|15		\|15
			\|SIG_REVERSE
	\|Reverse (12V)		\|Reverse (12V)
	\|-		\|-
	\|16		\|16
			\|OUT_OVTMP
	\|Over/Under Voltage (open collector 150mA)		\|Over/Under Voltage (open collector 150mA)
	\|-		\|-
	\|17		\|17
			\|SIG_EMCYSTOP
	\|Reserved		\|Reserved
	\|-		\|-
	\|18		\|18
			\|OUT_TEMP
	\|Temperature PWM output (open collector 150mA)		\|Temperature PWM output (open collector 150mA)
	\|-		\|-
	\|19		\|19
			\|SIG_BMS
	\|BMS Over/Under Voltage input (12V)		\|BMS Over/Under Voltage input (12V)
	\|-		\|-
	\|20		\|20
			\|OUT_PRE
	\|Precharge Output (open collector 150mA)		\|Precharge Output (open collector 150mA)
	\|-		\|-
	\|21		\|21
			\|MTEMP-
	\|Motor Temperature Input -		\|Motor Temperature Input -
	\|-		\|-
	\|22		\|22
			\|MTEMP+
	\|Motor Temperature Input +		\|Motor Temperature Input +
	\|-		\|-
	\|23		\|23
			\|GND
	\|GND		\|GND
	\|-		\|-
	\|24		\|24
			\|VCC
	\|Vcc (7-26V)		\|Vcc (7-26V)
	\|-		\|-
	\|25		\|25
			\|CANL
	\|CANL		\|CANL
	\|-		\|-
	\|26		\|26
			\|CANH
	\|CANH		\|CANH
	\|}		\|}

	[[Category:OpenInverter]] [[Category:Inverter]]		[[Category:OpenInverter]] [[Category:Inverter]]

Llange: Corrected an inversion between the pin numbers of precharge output and DC contactor output. Cross-checked with the rest of the page, the attached schematics on the Wiki and the PDF file on github.

2022-07-12T19:36:28Z

Corrected an inversion between the pin numbers of precharge output and DC contactor output. Cross-checked with the rest of the page, the attached schematics on the Wiki and the PDF file on github.

← Older revision		Revision as of 19:36, 12 July 2022
Line 24:		Line 24:
	[[File:Main board v3 .jpg\|thumb\|schematic (v2)]]		[[File:Main board v3 .jpg\|thumb\|schematic (v2)]]

	* The precharge output (OUT_PRE, pin 12) has two paralleled outputs, resulting in a maximum sinkage of 500mA.		* The precharge output (OUT_PRE, pin 20) has two paralleled outputs, resulting in a maximum sinkage of 500mA.

	* The DC contactor (OUT_DCSW, pin 20) output is is switch via a additional N-Chanel mosfet, which can sink up to 1-2amps.		* The DC contactor (OUT_DCSW, pin 12) output is is switch via a additional N-Chanel mosfet, which can sink up to 1-2amps.

	There's no econimizer system built into the openinverter board, so make sure your contactors have the appropriate economizing circuits .		There's no econimizer system built into the openinverter board, so make sure your contactors have the appropriate economizing circuits .

Bratitude: updated info on digital outputs + updated photo of schematic

2022-01-10T19:57:00Z

updated info on digital outputs + updated photo of schematic

← Older revision		Revision as of 19:57, 10 January 2022
Line 1:		Line 1:
	[[File:main_board_v3.jpg\|thumb\|Main board]]		[[File:main_board_v3.jpg\|thumb\|Main board (v1)]]
	[[File:mainboard_pinout_v3.png\|thumb\|Connections]]		[[File:mainboard_pinout_v3.png\|thumb\|Connections]]The main board is the heart of the inverter system. It contains all the intelligence that is needed to convert the users inputs into motor shaft movement. It also contains all the protection circuitry to avoid damage in case of erroneous inputs.
	~~[[File:schematic_main_v3.png\|thumb\|Schematic]]~~

	The main board is the heart of the inverter system. It contains all the intelligence that is needed to convert the users inputs into motor shaft movement. It also contains all the protection circuitry to avoid damage in case of ~~errornous~~ inputs.

	The pdf schematic is available via [https://github.com/jsphuebner/inverter-hardware/blob/master/mainboardv3.4.pdf github].		The pdf schematic is available via [https://github.com/jsphuebner/inverter-hardware/blob/master/mainboardv3.4.pdf github].
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	== Digital outputs ==		== Digital outputs ==
	There are 5 external open collector outputs on JP2. They sink up to 150mA each, DC contactor output can sink up to ~~300mA~~.		There are 5 external open collector outputs on JP2.
			They are switch via a uln2003 driver, each output can sink (makes a connection to ground) up to 150mA each
			[[File:Main board v3 .jpg\|thumb\|schematic (v2)]]

			* The precharge output (OUT_PRE, pin 12) has two paralleled outputs, resulting in a maximum sinkage of 500mA.

			* The DC contactor (OUT_DCSW, pin 20) output is is switch via a additional N-Chanel mosfet, which can sink up to 1-2amps.

			There's no econimizer system built into the openinverter board, so make sure your contactors have the appropriate economizing circuits .

	# DC contactor output (Pin 12) This output is activated when the bus voltage is above a given threshold and the start pin goes high. It is disabled on overcurrent, motor overheat and emergency stop.		# DC contactor output (Pin 12) This output is activated when the bus voltage is above a given threshold and the start pin goes high. It is disabled on overcurrent, motor overheat and emergency stop.
	# Error output (Pin 14) This output is activated on over current, motor overheat, emergency stop, throttle out of range.		# Error output (Pin 14) This output is activated on over current, motor overheat, emergency stop, throttle out of range.
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	# Precharge output (Pin 20) This output is activated when the inverter is powered up. It is disabled as soon as the DC contactor is enabled.		# Precharge output (Pin 20) This output is activated when the inverter is powered up. It is disabled as soon as the DC contactor is enabled.
	# Brake output (Pin 10) This output is high when potnom reaches a certain negative threshold. The purpose is to switch on the brake light on a certain regen level		# Brake output (Pin 10) This output is high when potnom reaches a certain negative threshold. The purpose is to switch on the brake light on a certain regen level



			<nowiki>*</nowiki>note: there's 2 versions of the main board v3, the old board lacked the high current output drivers for the contractor control. This old version is only capable of sinking up to 300mA for the OUT_DCSW and 150mA for OUT_PRE.

			Pictured in: "Main board (v1)"

	== PWM outputs ==		== PWM outputs ==

Crasbe: Added categories to the page to allow for better navigation, remove category "Hardware"

2022-01-07T15:10:41Z

Added categories to the page to allow for better navigation, remove category "Hardware"

← Older revision		Revision as of 15:10, 7 January 2022
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	\|}		\|}

	[[Category:~~Hardware~~]]		[[Category:OpenInverter]] [[Category:Inverter]]

Mjc506: Reminder to tie pin 17 to +12V

2021-03-27T11:11:47Z

Reminder to tie pin 17 to +12V

← Older revision		Revision as of 11:11, 27 March 2021
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	# Forward (Pin 13). If this input is high the motor spins forward.		# Forward (Pin 13). If this input is high the motor spins forward.
	# Reverse (Pin 15). If this input is high the motor spins backward. When neither input is high the motor will not spin at all.		# Reverse (Pin 15). If this input is high the motor spins backward. When neither input is high the motor will not spin at all.
	# Reserved input (Pin 17). This used to be an emergency stop input but I decided to reduce the number of HW stop pins. Emergency stop can now be chained to pin 11.		# Reserved input (Pin 17). This used to be an emergency stop input but I decided to reduce the number of HW stop pins. Emergency stop can now be chained to pin 11. Tie this to +12V (otherwise the inverter won't start using the 'start' switch)
	# BMS input (Pin 19). This input limits the motor torque (both negative and positive) if a BMS signals an over or undervoltage condition. It is active high, i.e. high means over/undervoltage.		# BMS input (Pin 19). This input limits the motor torque (both negative and positive) if a BMS signals an over or undervoltage condition. It is active high, i.e. high means over/undervoltage.
	There is one more digital inputs on JP3		There is one more digital inputs on JP3

Bratitude: updated url, previously a dead link

2020-12-30T06:42:12Z

updated url, previously a dead link

← Older revision		Revision as of 06:42, 30 December 2020
Line 5:		Line 5:
	The main board is the heart of the inverter system. It contains all the intelligence that is needed to convert the users inputs into motor shaft movement. It also contains all the protection circuitry to avoid damage in case of errornous inputs.		The main board is the heart of the inverter system. It contains all the intelligence that is needed to convert the users inputs into motor shaft movement. It also contains all the protection circuitry to avoid damage in case of errornous inputs.

	The pdf schematic is available via [https://github.com/jsphuebner/inverter-hardware/blob/master/~~mainboardv1~~.1.pdf github]. ~~----- LINK DEAD------~~		The pdf schematic is available via [https://github.com/jsphuebner/inverter-hardware/blob/master/mainboardv3.4.pdf github].

	Its distinct features are:		Its distinct features are:

Nuffz: GITHUB LINK IS DEAD

2020-12-28T19:54:57Z

GITHUB LINK IS DEAD

← Older revision		Revision as of 19:54, 28 December 2020
Line 5:		Line 5:
	The main board is the heart of the inverter system. It contains all the intelligence that is needed to convert the users inputs into motor shaft movement. It also contains all the protection circuitry to avoid damage in case of errornous inputs.		The main board is the heart of the inverter system. It contains all the intelligence that is needed to convert the users inputs into motor shaft movement. It also contains all the protection circuitry to avoid damage in case of errornous inputs.

	The pdf schematic is available via [https://github.com/jsphuebner/inverter-hardware/blob/master/mainboardv1.1.pdf github].		The pdf schematic is available via [https://github.com/jsphuebner/inverter-hardware/blob/master/mainboardv1.1.pdf github]. ----- LINK DEAD------

	Its distinct features are:		Its distinct features are:

Johu: /* Analog Inputs and over-current protection */

2020-07-06T16:53:08Z

Analog Inputs and over-current protection

← Older revision		Revision as of 16:53, 6 July 2020
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	# Regen pot input, 0-3.3V (Pin 8). Cutoff frequency 16Hz, input resistance 10k.		# Regen pot input, 0-3.3V (Pin 8). Cutoff frequency 16Hz, input resistance 10k.
	# KTY83 temperature sensor input (Pin 22 positive, Pin 21 negative). Cutoff frequency 16Hz		# KTY83 temperature sensor input (Pin 22 positive, Pin 21 negative). Cutoff frequency 16Hz
	There are 4 internal analog inputs on JP7. Pins 5, 7, 10, 15, 16 provide a GND connection, Pin 1,2, 8, 11, 12 provide ~~stablelized~~ 5V.		There are 4 internal analog inputs on JP7. Pins 5, 7, 10, 15, 16 provide a GND connection, Pin 1,2, 8, 11, 12 provide stabilized 5V.
	# Udc (Pin 4) Bus voltage input. 0-3.3V, cutoff frequency 16Hz		# Udc (Pin 4) Bus voltage input. 0-3.3V, cutoff frequency 16Hz
	# Il1 (Pin 6) Current phase 1. 0V=-Imax, 1.~~67V~~=0A, ~~3.3V~~=Imax (software configurable). Cutoff frequency 48kHz.		# Il1 (Pin 6) Current phase 1. 0V=-Imax, 2.5V=0A, 5V=Imax (software configurable). Cutoff frequency 48kHz.
	# Il2 (Pin 9)		# Il2 (Pin 9)
	# Heatsink temperature (Pin 13), cutoff frequency 16Hz		# Heatsink temperature (Pin 13), cutoff frequency 16Hz
Line 59:		Line 59:
	Alternatively Pin 1 and 3 can be connected to a quadrature encoder found embedded in many motors. It has better response than a single channel.		Alternatively Pin 1 and 3 can be connected to a quadrature encoder found embedded in many motors. It has better response than a single channel.

	Additionally Pin 4 can be connected to an index pulse for future use with synchronous motors.		<s>Additionally Pin 4 can be connected to an index pulse for future use with synchronous motors.</s>

	Pin 4 optionally provides 5V to power an optical encoder. To do that you have to bridge R28 (or put an application specific value there). You can also bridge R1 to get a GND connection on pin 2		Pin 4 optionally provides 5V to power an optical encoder. To do that you have to bridge R28 (or put an application specific value there). You can also bridge R1 to get a GND connection on pin 2

Johu: /* PWM outputs */

2020-02-11T09:28:24Z

PWM outputs

← Older revision		Revision as of 09:28, 11 February 2020
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	== PWM outputs ==		== PWM outputs ==
	There is one external PWM output on JP2, Pin 18. It outputs a duty cycle that is proportional to the motor or heatsink temperature or speed. Its offset and gain is software configurable. The frequency is fixed to 17kHz. It is an open collector output so it can be used with most temperature gauges in cars. It can sink up to ~~300mA~~.		There is one external PWM output on JP2, Pin 18. It outputs a duty cycle that is proportional to the motor or heatsink temperature or speed. Its offset and gain is software configurable. The frequency is fixed to 17kHz. It is an open collector output so it can be used with most temperature gauges in cars. It can sink up to 150mA.

	There are 6 internal PWM outputs on JP3. Pins 4, 8 and 12 provide a GND connection, Pins 1, 5 and 9 provide 5V. The outputs are 3.3V, 16mA.		There are 6 internal PWM outputs on JP3. Pins 4, 8 and 12 provide a GND connection, Pins 1, 5 and 9 provide 5V. The outputs are 3.3V, 16mA. Frequency is configurable to 4.4, 8.8 or 17.6kHz.
	# PWM Top phase 1 (Pin 2)		# PWM Top phase 1 (Pin 2)
	# PWM Bottom phase 1 (Pin 3)		# PWM Bottom phase 1 (Pin 3)
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	\|-		\|-
	\|12		\|12
	\|DC contactor output (open collector ~~600mA~~)		\|DC contactor output (open collector 300mA)
	\|-		\|-
	\|13		\|13
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	\|-		\|-
	\|14		\|14
	\|Error Signal (open collector ~~300mA~~)		\|Error Signal (open collector 150mA)
	\|-		\|-
	\|15		\|15
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	\|-		\|-
	\|16		\|16
	\|Over/Under Voltage (open collector ~~300mA~~)		\|Over/Under Voltage (open collector 150mA)
	\|-		\|-
	\|17		\|17
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	\|-		\|-
	\|18		\|18
	\|Temperature PWM output (open collector ~~300mA~~)		\|Temperature PWM output (open collector 150mA)
	\|-		\|-
	\|19		\|19
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	\|-		\|-
	\|20		\|20
	\|Precharge Output (open collector ~~300mA~~)		\|Precharge Output (open collector 150mA)
	\|-		\|-
	\|21		\|21

Johu: /* Pin Header Summary */

2020-01-27T18:28:11Z

Pin Header Summary

← Older revision		Revision as of 18:28, 27 January 2020
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	Additionally Pin 4 can be connected to an index pulse for future use with synchronous motors.		Additionally Pin 4 can be connected to an index pulse for future use with synchronous motors.

	Pin 2 provides 5V ~~with an output resistance of 120 Ohms~~ to power ~~the diode of~~ an optical encoder ~~with 30mA~~. You can bridge R7 to ~~obtain plain 5V.~~		Pin 4 optionally provides 5V to power an optical encoder. To do that you have to bridge R28 (or put an application specific value there). You can also bridge R1 to get a GND connection on pin 2

	Alternatively Pin 1 and 3 can be connected to a sin/cos feedback device and Pin 4 can generate a resolver excitation sine wave. In that case Pin 2 provides 1.7V to make the resolver feedback unipolar.		Alternatively Pin 1 and 3 can be connected to a sin/cos feedback device and Pin 4 can generate a resolver excitation sine wave. In that case Pin 2 provides 1.7V to make the resolver feedback unipolar.
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	\|-		\|-
	\|2		\|2
	\|~~30mA output for IR diode~~/Resolver center point S1S4		\|GND/Resolver center point S1S4
	\|-		\|-
	\|3		\|3
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	\|-		\|-
	\|4		\|4
	\|Index pulse input/Resover excitation R1		\|Index pulse input/5V output/Resover excitation R1
	\|-		\|-
	\|5		\|5