import Relay, ElectricPower, Diode, NFET, ElectricLogic

relay = new Relay
relay.coil_max_voltage = 12V
relay.coil_max_current = 50mA
relay.coil_resistance = 240ohm +/- 10%
relay.contact_max_switching_voltage = 250V
relay.contact_max_switching_current = 10A
relay.contact_max_current = 16A

# Connect coil power
power_12v = new ElectricPower
assert power_12v.voltage within 12V +/- 5%
relay.coil_power ~ power_12v

# Control relay with MOSFET and flyback diode
control_mosfet = new NFET
flyback_diode = new Diode
control_signal = new ElectricLogic

# Coil control circuit
power_12v.hv ~ relay.coil_power.hv
relay.coil_power.lv ~> control_mosfet ~> power_12v.lv
control_signal ~ control_mosfet.gate

# Flyback diode for coil protection
relay.coil_power.hv ~ flyback_diode.cathode
flyback_diode.anode ~ relay.coil_power.lv

# Switch high-power load using normally open contact
high_power_load ~ relay.switch_a_no
relay.switch_a_common ~ high_voltage_supply

​
Parameters

​
coil_max_current
ampere
​
coil_max_voltage
volt
​
coil_resistance
ohm
​
contact_max_current
ampere
​
contact_max_switching_current
ampere
​
contact_max_switching_voltage
volt

​
Interfaces

​
coil_power
ElectricPower
​
switch_a_common
Electrical
​
switch_a_nc
Electrical
​
switch_a_no
Electrical
​
switch_b_common
Electrical
​
switch_b_nc
Electrical
​
switch_b_no
Electrical

​
Global Attributes

These attributes are available to all modules and interfaces in a design.
​
lcsc_id
str
Assign the LCSC ID of the module.If set, this will tell the picker to select that part from LCSC for this block.
​
manufacturer
str
This module’s manufacturer name, as a string.Only exact matches on the manufacturer’s name will be found by the picker. It’s recommended to fill this information based on what ato create component provides.
​
mpn
str
This module’s manufacturer part number, as a string.For the picker to select the correct part from the manufacturer, this must be set.
​
package
str
The package of the module.This drives which components can be selected, and what footprint is used.Must exactly match a known package name.
​
exclude_from_bom
bool
​
override_net_name
str
When set on an interface, this will override the net name of the interface.This is useful for renaming nets which are automatically generated.
​
required
bool
Only for ModuleInterfaces. If set to True, require that interface is connected to something outside of the module it’s defined in.
import Relay, ElectricPower, Diode, NFET, ElectricLogic

relay = new Relay
relay.coil_max_voltage = 12V
relay.coil_max_current = 50mA
relay.coil_resistance = 240ohm +/- 10%
relay.contact_max_switching_voltage = 250V
relay.contact_max_switching_current = 10A
relay.contact_max_current = 16A

# Connect coil power
power_12v = new ElectricPower
assert power_12v.voltage within 12V +/- 5%
relay.coil_power ~ power_12v

# Control relay with MOSFET and flyback diode
control_mosfet = new NFET
flyback_diode = new Diode
control_signal = new ElectricLogic

# Coil control circuit
power_12v.hv ~ relay.coil_power.hv
relay.coil_power.lv ~> control_mosfet ~> power_12v.lv
control_signal ~ control_mosfet.gate

# Flyback diode for coil protection
relay.coil_power.hv ~ flyback_diode.cathode
flyback_diode.anode ~ relay.coil_power.lv

# Switch high-power load using normally open contact
high_power_load ~ relay.switch_a_no
relay.switch_a_common ~ high_voltage_supply