Abstract: Embodiments described herein describe a drug delivery device and a method of use thereof. The device includes a medicament container, a compressed gas container, an outlet, and a double-sided needle located within the housing. When a user presses an actuation button, the compressed air container is moved towards the medicament container and towards a proximal end of the double-sided needle. The double-sided needle pierces both the compressed gas container and the medicament container, opening fluid flow communication between the two containers, and causing medicament to be expelled out of the medicament container.

Abstract: An autoinjector may include a disposable portion and a reusable portion. The disposable portion may include a syringe and a syringe coupling. The syringe coupling may be coupled to the syringe, and may comprise a guide track. The reusable portion may include a device housing, a device actuator configured to initiate an injection of the autoinjector, and a motor coupled to the device actuator. The reusable portion may additionally include a motor foot coupled to an output of the motor, wherein the motor foot may be configured to translate in an axial direction. The reusable portion may also include a drive coupling disposed within the device housing. The drive coupling may include an angled surface configured to receive the motor foot and a protrusion configured to engage with the guide track of the syringe coupling to lock the drive coupling to the syringe coupling.

Abstract: An autoinjector may include a disposable portion and a reusable portion. The disposable portion may include a syringe and a syringe coupling. The syringe coupling may be coupled to the syringe, and may comprise a guide track. The reusable portion may include a device housing, a device actuator configured to initiate an injection of the autoinjector, and a motor coupled to the device actuator. The reusable portion may additionally include a motor foot coupled to an output of the motor, wherein the motor foot may be configured to translate in an axial direction. The reusable portion may also include a drive coupling disposed within the device housing. The drive coupling may include an angled surface configured to receive the motor foot and a protrusion configured to engage with the guide track of the syringe coupling to lock the drive coupling to the syringe coupling.

Abstract: Embodiments described herein describe a drug delivery device and a method of use thereof. The device includes a medicament container, a compressed gas container, an outlet, and a double-sided needle located within the housing. When a user presses an actuation button, the compressed air container is moved towards the medicament container and towards a proximal end of the double-sided needle. The double-sided needle pierces both the compressed gas container and the medicament container, opening fluid flow communication between the two containers, and causing medicament to be expelled out of the medicament container.

Abstract: Embodiments described herein describe a drug delivery device. The device includes a medicament container, a compressed gas container, an outlet, and a double-sided needle located within the housing. When a user presses an actuation button, the compressed air container is moved towards the medicament container and towards a proximal end of the double-sided needle. The double-sided needle pierces both the compressed gas container and the medicament container, opening fluid flow communication between the two containers, and causing medicament to be expelled out of the medicament container.

Abstract: Embodiments described herein describe a drug delivery device. The device includes a medicament container, a compressed gas container, an outlet, and a double-sided needle located within the housing. When a user presses an actuation button, the compressed air container is moved towards the medicament container and towards a proximal end of the double-sided needle. The double-sided needle pierces both the compressed gas container and the medicament container, opening fluid flow communication between the two containers, and causing medicament to be expelled out of the medicament container.

Abstract: A current control device for driving LED devices uses a switched-mode current control loop inside of an output intensity low-frequency pulse width modulation (PWM) control loop. This allows separate control of current level (for accurate light wavelength output) and light intensity. The current control device requires only one switch to regulate current level, and no other switches for the intensity control. This allows lower parts count for greater reliability and lower system cost.

Abstract: A programmable voltage regulator configurable for reverse blocking and double power density is disclosed herein. The programmable voltage regulator includes an error amplifier that couples to receive a reference voltage. A first NMOS pass transistor connects between an auxiliary voltage input node and the output terminal of the voltage regulator, wherein the first NMOS pass transistor is biased by the output of the error amplifier. Connected between the source of the first NMOS pass transistor and the second input of the error amplifier, a feedback network provides feedback for the voltage regulator. A second NMOS pass transistor connects between the first power supply and the auxiliary voltage input node. Furthermore, an independent node control circuit biases the second NMOS pass transistor such that in a first mode of operation, a first control signal input is operable to receive a signal for controlling the second NMOS pass transistor during reverse battery condition.

Abstract: A reverse battery protection circuits that provides an integrated reverse battery condition solution for protection of external NMOS switches during the reverse battery condition is disclosed herein. This reverse battery protection circuit minimizes power consumption during a reverse battery event wherein there is no need for mechanical adjustments such as heat sinking and clamping to extract the heat away from the silicon and not destroy the device. Specifically, the reverse battery protection circuit includes a push-pull gate drive circuit coupled between the first and second power supply rail. A protection subcircuit portion connects between a first output node and the second power supply rail to turn the external FET ‘on’ during the reverse battery condition. In particular, the protection subcircuit portion connects to the external FET device and includes a p-channel device connected between a second output node that biases the external FET device and a first diode.

Abstract: A system for controlling a plurality of load devices includes a high-side system operative to source current relative to at least two associated outputs. A low-side system is operative to sink current relative to a plurality of associated inputs. A control system controls the high-side system and the low-side system according to a multiplexing scheme that is operative to provide current to selected load devices of the plurality of load devices connected between the associated outputs and the associated inputs. The system can be implemented as an integrated circuit for driving the plurality of loads, which can include LED's.

Abstract: A current control device for driving LED devices uses a switched-mode current control loop inside of an output intensity low-frequency pulse width modulation (PWM) control loop. This allows separate control of current level (for accurate light wavelength output) and light intensity. The current control device requires only one switch to regulate current level, and no other switches for the intensity control. This allows lower parts count for greater reliability and lower system cost.

Abstract: The regulator circuit with an auxiliary boundary regulator that provides enhanced transient response includes: an upper comparator 24 having a first input coupled to a feedback node and a second input coupled to a first reference voltage node V_HIGH; a lower comparator 26 having a first input coupled to the feedback node and a second input coupled to a second reference voltage node V_LOW; a first switching device 30 having a control node coupled to an output of the upper comparator 24; a second switching device 28 having a control node coupled to an output of the lower comparator 26; an inductor 36 having a first end coupled to the first and second switching devices 28 and 30, and a second end coupled to an output node Vout; and a feedback circuit 32 and 34 coupled between the output node Vout and the feedback node.

Abstract: The regulator circuit with an auxiliary boundary regulator that provides enhanced transient response includes: an upper comparator 24 having a first input coupled to a feedback node and a second input coupled to a first reference voltage node V_HIGH; a lower comparator 26 having a first input coupled to the feedback node and a second input coupled to a second reference voltage node V_LOW; a first switching device 30 having a control node coupled to an output of the upper comparator 24; a second switching device 28 having a control node coupled to an output of the lower comparator 26; an inductor 36 having a first end coupled to the first and second switching devices 28 and 30, and a second end coupled to an output node Vout; and a feedback circuit 32 and 34 coupled between the output node Vout and the feedback node.

Abstract: A control circuit (50) for a switch mode power converter having precise control of amplitude and frequency that does not exhibit overshoot error nor undershoot error during a fast charge cycle nor a fast discharge cycle, respectively. In a first embodiment, the control circuit (50) does not exhibit undershoot error during a fast discharge cycle. The control circuit (50) comprises an oscillator (70) for providing a periodic carrier signal comprising a sawtooth wave output signal (VST). The oscillator (70) includes a capacitor (CT2) charged and discharged to the power supply voltage (VCC) to provide the sawtooth wave output signal (VST). In addition, the oscillator (70) includes a switching circuit (65) coupled to the reference voltage level (Vref). The control circuit (50) further includes a gain circuit (64) having a reference voltage input (Vref2), voltage input (Vin) and an output (Out). The reference voltage input (Vref2) receives the reference voltage(Vref).