Half-Bridge Driver

Behavioral model of an integrated circuit of a half-bridge driver.

blockType: AcausalElectricPowerSystems.Semiconductors.HalfBridgeDriver

Path in the library:

/Physical Modeling/Electrical/Semiconductors & Converters/Half-Bridge Driver

Description

Block Half-Bridge Driver It is an abstract representation of an integrated circuit for controlling MOSFET and IGBT half bridges. This block simulates input hysteresis, signal propagation delay, and on/off dynamics. If the gate driver circuit is not explicitly modeled, always use this block or block Gate Driver to set the gate-source voltage on the MOSFET unit or the gate-emitter voltage on the IGBT unit. Do not connect the controlled voltage source directly to the gate of the semiconductor, as this eliminates the output impedance of the gate driver, which determines the switching dynamics.

You can simulate the electrical or scalar input ports of the signals by setting the parameter Input port one of the following values:

Signal — The output status of the driver is controlled by the input signal u. Use this simulation option if all the functions of your controller, including PWM generation, are defined by Engee blocks. This simulation option is used by default.;
Electrical — The driver output status is controlled by two electrical ports: PWM and REF. Use this option if your model has analog components, for example, Controlled PWM Voltage.

The first pair of electrical output ports, HO and HS, work similarly to ports G and S of the unit Gate Driver. Connect these ports to the MOSFET or IGBT of the upper level of the half-bridge. The second pair of ports, LO and LS, are connected to the MOSFET or IGBT of the lower half-bridge level. They work similarly, except that their logic is inverted relative to the top-level logic.

The diagram shows the time characteristics of the half-bridge driver, where

— delay in signal propagation over the lower level when the input control signal changes from 0 on 1;
— the delay time at the upper level when the input control signal changes from 0 on 1;
— delay in signal propagation over the upper level when the input control signal changes from 1 on 0;
— the delay time at the lower level when changing the input control signal from 1 on 0.

half bridge driver en

Ports

Conserving

# HO — upper switch gate output
electricity

Details

A non-directional port connected to the gate of the upper half-bridge switch. Connect this port to the gate of the MOSFET or IGBT unit.

Program usage name

gate_H

# HS — output of the source or emitter of the upper switchboard
electricity

Details

A non-directional port connected to the source or emitter of the upper half-bridge switch. Connect this port to the source of the MOSFET unit or the emitter of the IGBT unit.

Program usage name

source_H

# LO — output of the lower switch gate
electricity

Details

A non-directional port connected to the gate of the lower half-bridge switch. Connect this port to the gate of the MOSFET or IGBT unit.

Program usage name

gate_L

# LS — output of the source or emitter of the lower switch
electricity

Details

A non-directional port connected to the source or emitter of the lower half-bridge switch. Connect this port to the source of the MOSFET unit or the emitter of the IGBT unit.

Program usage name

source_L

# PWM — pulse width modulation port
electricity

Details

The non-directional port to which the pulse width modulation signal is applied.

Dependencies

To use this port, set the parameter Input port meaning Electrical.

Program usage name

control_pin

# REF — floating zero reference port
electricity

Details

A non-directional port associated with a floating zero reference signal.

Dependencies

To use this port, set the parameter Input port meaning Electrical.

Program usage name

reference_pin

Input

# u — control signal, dimensionless
scalar

Details

An input signal specifying an input reference value.

Dependencies

To use this port, set the parameter Input port meaning Signal.

Data types	`Float64`
Complex numbers support	No

Parameters

Input Logic

# Input port — option to specify the type of control port
Signal | Electrical

Details

Option to specify the control port:

Signal — The unit uses a directional input port to control the output status of the driver;
Electrical — The unit uses two non-directional electrical ports to control the output status of the driver.

Values	`Signal` \| `Electrical`
Default value	`Signal`
Program usage name	`control_type`
Evaluatable	No

# Logic 1 input value — the value of the signal for the logic layer 1

Details

The value of the input signal corresponding to the logic level 1.

Dependencies

To use this parameter, set for the parameter Input port meaning Signal.

Default value	`0.7`
Program usage name	`control_signal_IH`
Evaluatable	Yes

# Logic 0 input value — the value of the signal for the logic layer 0

Details

The value of the input signal corresponding to the logic level 0.

Dependencies

To use this parameter, set for the parameter Input port meaning Signal.

Default value	`0.3`
Program usage name	`control_signal_IL`
Evaluatable	Yes

# Logic 1 input voltage — the voltage value for the logic level 1
V | uV | mV | kV | MV

Details

The value of the input voltage corresponding to the logic level 1.

Dependencies

To use this parameter, set for the parameter Input port meaning Electrical.

Units	`V` \| `uV` \| `mV` \| `kV` \| `MV`
Default value	`2.0 V`
Program usage name	`V_IH`
Evaluatable	Yes

# Logic 0 input voltage — the voltage value for the logic level 0
V | uV | mV | kV | MV

Details

The value of the input voltage corresponding to the logic level 0.

Dependencies

To use this parameter, set for the parameter Input port meaning Electrical.

Units	`V` \| `uV` \| `mV` \| `kV` \| `MV`
Default value	`0.8 V`
Program usage name	`V_IL`
Evaluatable	Yes

Outputs

# On-state gate-source voltage — required output voltage when switched on
V | uV | mV | kV | MV

Details

The required output voltage when the driver is switched on.

Units	`V` \| `uV` \| `mV` \| `kV` \| `MV`
Default value	`15.0 V`
Program usage name	`V_OH`
Evaluatable	Yes

# Off-state gate-source voltage — required output voltage in the off state
V | uV | mV | kV | MV

Details

The required output voltage in the off state of the driver.

Units	`V` \| `uV` \| `mV` \| `kV` \| `MV`
Default value	`0.0 V`
Program usage name	`V_OL`
Evaluatable	Yes

Timing

# Low-side propagation delay (logic 0->logic 1) — on the time chart
s | ns | us | ms | min | hr | d

Details

Delay of signal propagation at the lower level when the input control signal changes from 0 on 1.

Units	`s` \| `ns` \| `us` \| `ms` \| `min` \| `hr` \| `d`
Default value	`50.0 ns`
Program usage name	`t_on_propagation_delay`
Evaluatable	Yes

# High-side dead time (logic 0->logic 1) — on the time chart
s | ns | us | ms | min | hr | d

Details

Upper-level delay time when the input control signal changes from 0 on 1.

Units	`s` \| `ns` \| `us` \| `ms` \| `min` \| `hr` \| `d`
Default value	`100.0 ns`
Program usage name	`t_on_dead`
Evaluatable	Yes

# High-side propagation delay (logic 1->logic 0) — on the time chart
s | ns | us | ms | min | hr | d

Details

Delay of signal propagation along the upper level when the input control signal changes from 1 on 0.

Units	`s` \| `ns` \| `us` \| `ms` \| `min` \| `hr` \| `d`
Default value	`50.0 ns`
Program usage name	`t_off_propagation_delay`
Evaluatable	Yes

# Low-side dead time (logic 1->logic 0) — on the time chart
s | ns | us | ms | min | hr | d

Details

The delay time at the lower level when changing the input control signal from 1 on 0.

Units	`s` \| `ns` \| `us` \| `ms` \| `min` \| `hr` \| `d`
Default value	`100.0 ns`
Program usage name	`t_off_dead`
Evaluatable	Yes

Dynamics

# Parameterization — choosing the driver parameterization
Output impedance | Rise and fall times

Details

Select the type of driver parameterization:

Output impedance — specify the gate driver resistances in the on and off states;
Rise and fall times — specify the rise time, fall time and load capacity.

Values	`Output impedance` \| `Rise and fall times`
Default value	`Output impedance`
Program usage name	`parameterization`
Evaluatable	No

# On-state gate drive resistance — required gate control resistance when switched on
Ohm | mOhm | kOhm | MOhm | GOhm

Details

Required gate control resistance when the driver is switched on.

Dependencies

To use this parameter, set for the parameter Parameterization meaning Output impedance.

Units	`Ohm` \| `mOhm` \| `kOhm` \| `MOhm` \| `GOhm`
Default value	`2.0 Ohm`
Program usage name	`R_on`
Evaluatable	Yes

# Off-state gate drive resistance — resistance to shutter control in the off state
Ohm | mOhm | kOhm | MOhm | GOhm

Details

The resistance of the gate control in the driver’s off state.

Dependencies

To use this parameter, set for the parameter Parameterization meaning Output impedance.

Units	`Ohm` \| `mOhm` \| `kOhm` \| `MOhm` \| `GOhm`
Default value	`2.0 Ohm`
Program usage name	`R_off`
Evaluatable	Yes

# Rise time — driver rise time
s | ns | us | ms | min | hr | d

Details

Driver rise time from 10% up to 90%.

Dependencies

To use this parameter, set for the parameter Parameterization meaning Rise and fall times.

Units	`s` \| `ns` \| `us` \| `ms` \| `min` \| `hr` \| `d`
Default value	`20.0 ns`
Program usage name	`t_R`
Evaluatable	Yes

# Fall time — driver down time
s | ns | us | ms | min | hr | d

Details

The time of the driver’s decline from 90% up to 10%.

Dependencies

To use this parameter, set for the parameter Parameterization meaning Rise and fall times.

Units	`s` \| `ns` \| `us` \| `ms` \| `min` \| `hr` \| `d`
Default value	`20.0 ns`
Program usage name	`t_F`
Evaluatable	Yes

# Load capacitance for rise and fall times — driver load capacity
F | pF | nF | uF | mF

Details

The load capacity of the driver.

Dependencies

To use this parameter, set for the parameter Parameterization meaning Rise and fall times.

Units	`F` \| `pF` \| `nF` \| `uF` \| `mF`
Default value	`10.0 nF`
Program usage name	`C_load`
Evaluatable	Yes